List of 7-foot gauge railway locomotive names

This is a list of the names of broad gauge railway locomotives built in the United Kingdom during the heyday of that gauge (which ended in that country by 1892 with the final triumph of standard gauge). Throughout the history of railways many locomotives have been named (just as many have been numbered, and many have borne both a name and a number), but Britain's Great Western Railway, the prime exponent of the broad gauge, was noted for being an enthusiastic namer throughout its long existence, and perhaps less interested in numbering - although all locomotives carried numbers.

The name of the first locomotive of a batch was often the name by which the whole class was known, such as ''Fire Fly'' or ''Victoria''.

As with other named locomotives, broad-gauge ones drew their names from a wide variety of sources. As well as the many names from Greek mythology, Greek, Roman mythology, Roman and other mythology, mythologies, locomotives were named after famous people, literature, flora, fauna, towns, and geography, geographical features, as well as imagery suggestive of speed and power:
*Mythology – Banshee, Osiris, Peri, Python (mythology), Python, Venus (mythology), Venus
*Famous people – Isambard Kingdom Brunel, Brunel, Dido (Queen of Carthage), Dido, Euripides, Duke of Wellington, Iron Duke, Victoria of the United Kingdom, Victoria
*Literature – Ivanhoe, Mazeppa (Byron), Mazeppa, Robin Hood, Odysseus, Ulysses
*Flora and fauna – Bee, Hawk, Lilium, Lily, Shamrock, Zebra
*Towns – Bristol, Reading, Berkshire, Reading, Swindon, Wickwar, Windsor, Berkshire, Windsor
*Geography – River Exe, Exe, Hekla, Hecla, River Severn, Severn, Stromboli, Yeo There are several rivers called River Yeo (disambiguation), Yeo, and three of them are in the area where the North Devon Railway (7-foot gauge) operated.
*Speed- and power-imagery – Comet, Fire Ball, Hurricane, Lightning, Rocket

Key
This list covers the broad gauge locomotives of the following railways:
* BGR - Bristol and Gloucester Railway
* CCR - Carmarthen and Cardigan Railway
* GWR - Great Western Railway
* LVR - Llynvi Valley Railway
* NCJR - Newquay and Cornwall Junction Railway
* NDR - North Devon Railway
* SDR - South Devon Railway Company, South Devon Railway
* SWMR - South Wales Mineral Railway
* S&WR - Severn and Wye Railway
* TBR - Torbay and Brixham Railway
* WCR - West Cornwall Railway

A

* ''Abbot'' (Literature: The Abbot)
: GWR Waverley Class, GWR Waverley class 4-4-0 (1855 - 1876)
* ''Abdul Medjid'' (Famous personality: Abdul Medjid of Turkey)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1856 - 1877)
* ''Acheron'' (Greek mythology: Acheron)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1866)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1866 - 1887)
* ''Achilles'' (Greek mythology: Achilles)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 -1867)
: South Devon Railway Buffalo class, SDR Buffalo class 0-6-0ST (1873 - 1892)
* ''Actaeon'' (Greek mythology: Actaeon)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1868)
* ''Ada''
: Llynvi and Ogmore Railway#Locomotives, LVR and SDR 0-6-0ST (1862 - 1884)
* ''Aeolus'' (Greek mythology: Aeolus)
: GWR Charles Tayleur locomotives, GWR Charles Tayleur 2-2-2 (1837 - 1867)
* ''Ajax'' (Greek mythology: Ajax the Great, Ajax)
: GWR Mather, Dixon locomotives, GWR Mather, Dixon 2-2-2 (1838 - 1840)
: GWR Premier Class, GWR Premier class 0-6-0 (1846 - 1871)
: South Devon Railway Dido class, SDR Dido class 0-6-0ST (1860 - 1884)
* ''Alexander'' (Famous personality: Alexander II of Russia)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1856 - 1878)
* ''Aligator'' (Powerful animal: Alligator)
: GWR Pyracmon Class, GWR Pyracmon class 0-6-0 (1848 - 1873)
* ''Alma'' (British battle: Battle of Alma)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1854 - 1872)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1880 - 1892)
* ''Amazon'' (Mythical peoples: Amazons)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1851 - 1877)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1878 - 1892)
* ''Amphion '' (Greek mythology: Amphion)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1856 - 1877)
* ''Antelope'' (Fast animal: Antelope)
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1870)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1859 - 1884)
* ''Antiquary'' (Literature: The Antiquary)
: GWR Waverley Class, GWR Waverley class 4-4-0 (1855 - 1876)
* ''Apollo'' (Greek mythology: Apollo)
: GWR Charles Tayleur locomotives, GWR Charles Tayleur 2-2-2 (1838 - 1867)
* ''Aquarius'' (Zodiac: Aquarius (astrology), Aquarius)
: GWR Leo Class, GWR Leo class 2-4-0 (1842 - 1870)
* ''Arab'' (Classical peoples: Arab)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1870)
* ''Ariadne '' (Greek mythology: Ariadne)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1852 - 1879)
* ''Ariel'' (Biblical: Ariel (angel), Ariel)
: GWR Mather, Dixon locomotives, GWR Mather, Dixon 2-2-2 (1838 - 1840)
* ''Aries'' (Zodiac: Aries (astrology), Aries)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1871)
* ''Argo'' (Greek mythology: Argo)
: GWR Premier Class, GWR Premier class 0-6-0 (1846 - 1855)
: South Devon Railway Dido class, SDR Dido class 0-6-0ST (1863 - 1892)
* ''Argus'' (Greek mythology: see Argo)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1873)
* ''Arrow'' (Speed: Arrow)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1864)
* ''Assagais''
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1875)
* ''Atlas'' (Greek mythology: Atlas (mythology), Atlas)
: GWR Sharp, Roberts locomotives, GWR Sharp, Roberts 2-2-2 (1838 - 1872)
: South Devon Railway Dido class, SDR Dido class 0-6-0ST (1863 - 1885)
* ''Aurora'' (Greek mythology: Aurora (mythology), Aurora)
: GWR Sun Class, GWR Sun class 2-2-2 (1840 - 1866)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1852 - 1878)
* ''Avalanche'' (Power: Avalanche)
: GWR Banking Class, GWR Banking class 0-6-0ST (1846 - 1865)
* ''Avon '' (Geography: River Avon (disambiguation), River Avon)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1857 - 1877)
* ''Avonside'' (Engineer: see Avonside Engine Company)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (c.1865 - 1892)
* ''Azalia'' (Flower: Azalea)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1864 - 1872)

B

* ''Bacchus'' (Roman mythology: Dionysus, Bacchus)
: GWR Charles Tayleur locomotives, GWR Charles Tayleur 2-2-2 (1837 - 1842)
* ''Balaklava'' (British battle: Battle of Balaklava)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1854 - 1871)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1871 - 1892)
* ''Banshee '' (Irish mythology: Banshee)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1879)
* ''Barum''
:North Devon Railway#Bristol and Gloucester 2-2-2, NDR 2-2-2- (1855 - 1870)
* ''Bath'' (Geography: Bath, Somerset, Bath)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1866 - 1874)
* ''Bee'' (Insect: Bee)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1874)
* ''Behemoth'' (Biblical: Behemoth)
: GWR Pyracmon Class, GWR Pyracmon class 0-6-0 (1848 - 1873)
* ''Bellerophon'' (Greek mythology: Bellerophon)
: GWR Premier Class, GWR Premier class 0-6-0 (1846 - 1870)
* ''Bellona'' (Roman mythology: Bellona (goddess), Bellona)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1870)
* ''Bergion''
: GWR Premier Class, GWR Premier class 0-6-0 (1847 - 1870)
* ''Berkeley'' (Geography: Berkeley, Gloucestershire, Berkeley)
: Bristol and Gloucester Railway#Bristol and Gloucester 2-2-2-, BGR 2-2-2 (1844 - 1856)
* ''Bey'' (Leader of people: Bey)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1872)
* ''Beyer'' (Famous engineer: Charles Beyer)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1877)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0T (1877 - 1887)
* ''Birmingham'' (Geography: Birmingham)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1866 - 1873)
* ''Bithon''
: GWR Banking Class, GWR Banking class 0-6-0ST (1854 - 1871)
* ''Blenkensop'' (Famous engineer: John Blenkinsop)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1892)
* ''Boyne '' (Geography: River Boyne)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1857 - 1872)
* ''Briarcus''
: GWR Premier Class, GWR Premier class 0-6-0 (1847 - 1870)
* ''Brigand''
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1849 - 1873)
* ''Bright Star''
: GWR Star Class, GWR Star class 2-2-2 (1841 - 1864)
* ''Brindley'' (Famous engineer: James Brindley)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1863 - 1879)
* ''Bristol'' (Geography: Bristol)
: Bristol and Gloucester Railway#Bristol and Gloucester 2-2-2-, BGR 2-2-2 (1844 - 1855)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1865 - 1873)
* ''Brontes'' (Greek mythology: Cyclops, Brontes)
: GWR Premier Class, GWR Premier class 0-6-0 (1847 - 1872)
* ''Brunel'' (Famous engineer: Isambard Kingdom Brunel)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1863 - 1879)
* ''Brutus'' (Roman personality: Marcus Junius Brutus)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1874)
: South Devon Railway Dido class, SDR Dido class 0-6-0ST (1862 - 1884)
* ''Buffalo'' (Animal: Bison, Buffalo)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1865)
: South Devon Railway Buffalo class, SDR Buffalo class 0-6-0ST (1872 - 1892)
* ''Bulkeley''
: GWR Sir Watkin Class, GWR Sir Watkin class 0-6-0T (1865 - 1872)
: GWR Sir Watkin Class, SDR 0-6-0ST (1872 - 1890)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1880 - 1892)
* ''Bury'' (Famous engineer: Bury, Curtis, and Kennedy, Edward Bury)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1877)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0T (1877 - 1892)
: GWR Pyracmon Class, GWR Pyracmon class 0-6-0 (1848 - 1873)

C

* ''Caesar'' (leader of people: Caesar (title), Caesar)
: GWR Caesar Class, GWR Caesar class 0-6-0 (1851 - 1880)
* ''Caliban'' (Shakespear character: Caliban)
: GWR Pyracmon Class, GWR Pyracmon class 0-6-0 (1848 - 1873)
* ''Caliph '' (Leadrer of people: Caliph)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1878)
* ''Cambyses '' (Leader of people: Cambyses II, Cambyses)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1877)
* ''Camel'' (Animal: Camel)
: South Devon Railway Buffalo class, SDR Buffalo class 0-6-0ST (1872 - 1892)
* ''Camelia'' (Flower: Camellia)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1863 - 1876)
* ''Cancer'' (Zodiac: Cancer (astrology), Cancer)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1874)
* ''Capricornus'' (Zodiac: Capricornus, Capricorn)
: GWR Leo Class, GWR Leo class 2-4-0 (1842 - 1870)
* ''Castor'' (Greek mythology: Castor and Pollux)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1874)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1865 - 1882)
* ''Cato'' (Roman personality: Cato the Elder, Cato)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1871)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1863 - 1877)
* ''Centaur'' (Greek mythology: Centaur)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1867)
* ''Cerebus'' (Greek mythology: Cerebus)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1866)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1866 - 1877)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0T (1877 - 1892)
* ''Ceres'' (Roman mythology: Ceres (Roman mythology), Ceres)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1877)
* ''Champion'' (Power: Champion)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1862 - 1878)
* ''Charon'' (Greek mythology: Charon (mythology), Charon)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1878)
* ''Cheltenham'' (Geography: Cheltenham)
: Bristol and Gloucester Railway#Bristol and Gloucester 2-2-2-, BGR 2-2-2 (1844 - 1856)
* ''Chester'' (Geography: Chester)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1866 - 1873)
* ''Chronus'' (Greek mythology: Chronos)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1878)
* ''Cicero'' (Roman personality: Cicero)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1871)
* ''Clyde'' (Geography: River Clyde)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1858 - 1872)
* ''Coeur de Lion'' (Literary: see Sir Walter Scott#The Waverley Novels, The Waverley Novels)
: GWR Waverley Class, GWR Waverley class 4-4-0 (1855 - 1876)
* ''Comet'' (Speed: Comet)
: GWR Sun Class, GWR Sun class 2-2-2 (1840 - 1871)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1851 - 1884)
* ''Coquette''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1875)
* ''Cornwall'' (Geography: Cornwall)
: Newquay and Cornwall Junction Railway, NCJR 0-6-0T
* ''Corsair''
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1849 - 1873)
* ''Cossack'' (Classical peoples: Cossack)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1862 - 1880)
* ''Courier'' (Speed: Courier)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1848 - 1877)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1878 - 1892)
* ''Creedy'' (Geography: River Creedy)

: North Devon Railway#Creedy, NDR 2-4-0 (1855 - 1877)
* ''Creese''
: GWR Sun Class, GWR Sun class 2-2-2 (1842 - 1866)
* ''Creon'' (Greek mythology: Creon of Thebes, Creon)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1856 - 1872)
* ''Crimea'' (British battles: Crimean War)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1855 - 1876)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1878 - 1892)
* ''Crow'' (Bird: Crow)
: South Devon Railway 0-4-0 locomotives#Raven class, SDR Raven class 0-4-0ST (1874 - 1892)
* ''Cupid'' (Roman mythology: Cupid and Psyche)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1874)
* ''Cyclops'' (Greek mythology: Cyclops)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1865)
* ''Cyprus'' (Greek mythology: birthplace of Aphrodite)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1878)
* ''Czar'' (Leader of people: Czar)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1871)

D

* ''Damon'' (Greek mythology: Damon and Pythias)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 11870)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1852 - 1876)
* ''Dart'' (Speed: Wiktionary:Dart, Dart; Geography: River Dart)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1870)
: North Devon Railway#Dart and Yeo, NDR 2-2-2 (1855 - 1867)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1863 - 1885)
: North Devon Railway#Dart and Yeo, NDR 2-2-2 (1868 - 1877)
* ''Defiance''
: Bristol and Gloucester Railway#Bristol and Gloucester 0-6-0, BGR / NDR 0-6-0 (1844 - 1867)
* ''Dewrance''
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1892)
* ''Diana'' (Greek mythology: Diana (mythology), Diana)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1877)
* ''Dido'' (Classical ruler: Dido (Queen of Carthage), Dido)
: GWR Caesar Class, GWR Caesar class 0-6-0 (1851 - 1872)
: South Devon Railway Dido class, SDR Dido class 0-6-0ST (1860 - 1877)
* ''Djerid''
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1870)
* ''Dog Star''
: GWR Star Class, GWR Star class 2-2-2 (1839 -1869)
* ''Dragon'' (Mythological animal: Dragon)

: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1848 - 1872)
: South Devon Railway Buffalo class, SDR Buffalo class 0-6-0ST (1873 - 1892)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1880 - 1892)
* ''Dreadnought''
: Bristol and Gloucester Railway#Bristol and Gloucester 0-6-0, BGR / NDR 0-6-0 (1844 - 1863)
: GWR Premier Class, GWR Premier class 0-6-0 (1846 - 1871)
* ''Dromedary'' (Animal: Dromedary)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1866)
: South Devon Railway Buffalo class, SDR Buffalo class 0-6-0ST (1873 - 1892)
* ''Druid'' (Classical peoples: Druid)
: GWR Caesar Class, GWR Caesar class 0-6-0 (1851 - 1879)

E

* ''Eagle'' (Bird: Eagle)
: GWR Sharp, Roberts locomotives, GWR Sharp, Roberts 2-2-2 (1838 - 1871)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1859 - 1876)
* ''Eclipse''
: GWR Sun Class, GWR Sun class 2-2-2 (1840 - 1864)
* ''Electra'' (Greek mythology: Electra)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1867)
* ''Elephant'' (Animal: Elephant)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1870)
: South Devon Railway Buffalo class, SDR Buffalo class 0-6-0ST (1872 - 1892)
* ''Elk'' (Animal: Moose, Elk)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1859 - 1877)
* ''Emperor'' (Leader of people: Emperor)

: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1847 - 1873)
: South Devon Railway Buffalo class, SDR Buffalo class 0-6-0ST (1873 - 1892)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1880 - 1892)
* ''Erebus'' (Greek mythology: Erebus)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1873)
* ''Esk'' (Geography: River Esk, Cumbria, River Esk)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1857 - 1880)
* ''Estaffette''
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1850 - 1884)
* ''Ethon'' (Greek mythology: Ethon)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1863 - 1883)
* ''Etna'' (Geography: Mount Etna, Etna)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1870)
: Carmarthen and Cardigan Railway#Locomotives, CCR and SDR 4-4-0ST (1864 - 1892)
* ''Eupatoria'' (British battle: Yevpatoria, Eupatoria)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1855 - 1876)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1878 - 1892)
* ''Euripides'' (Greek personality: Euripides)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1855 - 1871)
* ''Europa'' (Greek mythology: Europa (mythology), Europa)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1892)
* ''Evening Star''
: GWR Star Class, GWR Star class 2-2-2 (1839 - 1871)
* ''Exe'' (Geography: River Exe)
: GWR Haigh Foundry locomotives, GWR Haigh Foundry 2-2-2 (1846 - 1851?)
: North Devon Railway#Bristol and Gloucester 2-2-2, NDR 2-2-2 (1856 - 1870)

F

* ''Falcon'' (Bird: Falcon)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 -1867)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1852 - 1878)
* ''Fenton'' (Famous engineer: Fenton, Murray and Jackson, James Fenton)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1892)
* ''Fire Ball'' (Power: Fireball)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1866)
* ''Fire Brand'' (Power: wikt:firebrand, Firebrand)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1866)
* ''Fire Fly'' (Insect: Firefly)

: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1870)
: GWR Firefly Class#Replica, Fire Fly replica 2-2-2 (Built 2005)
* ''Fire King''
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1875)
* ''Fleur-de-Lis'' (Flower: Fleur-de-Lis)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1863 - 1872)
* ''Flirt''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1852 - 1874)
* ''Flora'' (Roman mythology: Flora (mythology), Flora)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1872)
* ''Florence'' (Geography: Florence)
: GWR Caesar Class, GWR Caesar class 0-6-0 (1851 - 1874)
* ''Forth'' (Geography: River Forth)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1858 - 1878)
* ''Forrester''
: Severn and Wye Railway, S&WR 0-6-0T (1868? - 1872)
* ''Foster'' (Famous engineer: Foster, Rastrick and Company, James Foster)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1876)
* ''Fowler'' (Famous engineer: Sir John Fowler, 1st Baronet, John Fowler)
: GWR Sir Watkin Class, GWR Sir Watkin class 0-6-0T (1866 - 1872)
: GWR Sir Watkin Class, SDR 0-6-0ST (1872 - 1887)
* ''Friar Tuck'':
: Severn and Wye Railway, S&WR 0-6-0T (1870 - 1872)
* ''Fulton'' (Famous engineer: Robert Fulton)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1863 - 1876)
* ''Fury'' (Roman mythology: Furies)
: GWR Premier Class, GWR Premier class 0-6-0 (1846 - 1871)

G

* ''Ganymede'' (Greek mythology: Ganymede (mythology), Ganymede)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1878)
* ''Gazelle'' (Fast animal: Gazelle)
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1879)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1859 - 1865)
* ''Gemini'' (Zodiac: Gemini (astrology), Gemini)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1866)
* ''Geryon'' (Greek mythology: Geryon)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1876)
* ''Giaour'' (Literature: The Giaour)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1852 - 1880)
* ''Giraffe'' (Animal: Giraffe)
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1872)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1859 - 1877)
* ''Gladiator'' (Power: Gladiator)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1877)
* ''Gloucester'' (Geography: Gloucester)
: Bristol and Gloucester Railway#Bristol and Gloucester 2-2-2-, BGR 2-2-2 (1844 - 1855)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1866 - 1873)
* ''Glyncorrwg'' (Geography: Glyncorrwg)
: South Wales Mineral Railway, SWMR 0-4-2ST (1864 - 1872)
* ''Gnat'' (Insect: Gnat)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1874)
* ''Goat'' (Animal: Goat)
: South Devon Railway 0-4-0 locomotives#Owl class, SDR Owl class 0-4-0WT (1873 - 1893)
* ''Goliah'' (Biblical: Goliath (Bible), Goliath)
: GWR Hercules Class, GWR Hercules class 0-6-0 (1842 - 1871)
: South Devon Railway Tornado class, SDR Tornado class 0-6-0ST (1855 - 1885)
* ''Gooch'' (Famous engineer: Daniel Gooch)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1892)
* ''Gorgon'' (Greek mythology: Gorgon)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1878)
: South Devon Railway Gorgon class, SDR Gorgon class 4-4-0ST (1866 - 1892)
* ''Great Britain'' (Geography: Great Britain)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1847 - 1880)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1880 - 1892)
* ''Great Western'' (Railway: Great Western Railway)
: GWR Iron Duke Class#2-2-2 Great Western, GWR 2-2-2 (1846)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1846 - 1870)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1888 - 1892)
* ''Greyhound'' (Fast animal: Greyhound)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1866)
* ''Gyfeillon''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1856 - 1879)

H

* ''Hackworth'' (Famous engineer: Timothy Hackworth)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1892)
* ''Hades'' (Greek mythology: Hades)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1878)
* ''Harpy'' (Greek mythology: Harpy)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841- 1873)
* ''Hawk'' (Bird: Hawk)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1865)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1859 - 1886)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1892)
* ''Hawthorn'' (Famous engineer: see Hawthorn Leslie and Company)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1876)
* ''Hebe'' (Greek mythology: Hebe (mythology), Hebe)
: GWR Ariadne Class, GWR Standard Goods 0-6-0(1852 - 1877)
: South Devon Railway Dido class, SDR Dido class 0-6-0ST (1860 - 1877)
* ''Hecate'' (Greek mythology: Hecate)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1867)
* ''Hecla'' (Geography: Hekla, Hecla)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1864)
: Carmarthen and Cardigan Railway#Locomotives, CCR and SDR 4-4-0ST (1864 - 1892)
* ''Hector'' (Greek mythology: Hector)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1866)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1860 - 1892)
* ''Hecuba'' (Greek mythology: Hecuba)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1873)
* ''Hedley'' (Famous engineer: William Hedley)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1877)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0T (1877 - 1892)
* ''Hercules'' (Roman mythology: Hercules)
: GWR Hercules Class, GWR Hercules class 0-6-0 (1842 - 1870)
: South Devon Railway Buffalo class, SDR Buffalo class 0-6-0ST (1872 - 1889)

* ''Hereford'' (Geography: Hereford)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1866 - 1872)
* ''Hero'' (Mythology: Hero)
: GWR Caesar Class, GWR Caesar class 0-6-0 (1851 - 1871)
: South Devon Railway Dido class, SDR Dido class 0-6-0ST (1860 - 1887)
* ''Heron'' (Bird: Heron)
: Carmarthen and Cardigan Railway#Locomotives, CCR and SDR 4-4-0T (1861 - 1872)
: Carmarthen and Cardigan Railway#Locomotives, SDR 4-4-0ST (1872 - 1892)
* ''Hesiod'' (Greek personality: Hesiod)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1855 - 1872)
* ''Hesperus'' (Roman mythology: Hesperus)
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1876)
* ''Hirondelle'' (Bird: French for Swallow)

: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1848 - 1873)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1873 - 1890)
* ''Homer'' (Greek personality: Homer)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1854 - 1873)
* ''Horace'' (Roman personality: Horace)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1854 - 1880)
* ''Hornet'' (Insect: Hornet)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1873)
* ''Humber'' (Geography: Humber, River Humber)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1857 - 1883)
* ''Hurricane'' (Power: Hurricane)
: GWR Hurricane locomotive, GWR Harrison 0-4-0+6 (1838 - 1839)
* ''Hydra'' (Greek mythology: Lernaean Hydra)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1865)

I

* ''Iago'' (Literature: Iago)
: GWR Banking Class, GWR Banking class 0-6-0ST (1852 - 1881)
* ''Industry''
: Bristol and Gloucester Railway#Bristol and Gloucester 2-4-0, BGR 2-4-0 (1844 - 1856)
* ''Inkermann'' (British Battle of Inkermann)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1855 - 1877)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1878 - 1892)
* ''Iris'' (Greek mythology: Iris (mythology), Iris)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1874)
* ''Iron Duke'' (Famous personality: see Duke of Wellington)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1847 - 1871)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1873- 1892)
: GWR Iron Duke Class#Replica, Iron Duke replica 4-2-2 (Built 1985)
* ''Ivanhoe'' (Literature: Ivanhoe)
: GWR Waverley Class, GWR Waverley class 4-4-0 (1855 - 1876)
* ''Ixion'' (Greek mythology: Ixion)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1879)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1853 - 1878)

J

* ''Janus'' (Greek mythology: Janus (mythology), Janus)
: GWR Ariadne Class, GWR Standard Goods 0-6-0(1854 - 1880)
* ''Jason'' (Greek mythology: Jason)
: GWR Premier Class, GWR Premier class 0-6-0 (1847 - 1870)
* ''Javelin''
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1870)
* ''Jay'' (Bird: Jay)
: South Devon Railway 0-4-0 locomotives#Raven class, SDR Raven class 0-4-0ST (1875 - 1892)
* ''John Gray''
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1876)
* ''Juno'' (Roman mythology Juno (mythology), Juno)
: GWR Banking Class, GWR Banking class 0-6-0ST (1852 - 1872)
: South Devon Railway Dido class, SDR Dido class 0-6-0ST (1864 - 1884)
* ''Jupiter'' (Roman mythology: Jupiter (mythology), Jupiter)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1867)
* ''Juvenal'' (Roman personality: Juvenal)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1854 - 1873)

K

* ''Kaiser'' (Leader of people: Kaiser)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1872)
* ''Kertch'' (British battle: Kertch)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1855 0 1872)
* ''Khan'' (Leader of people: Khan (title), Khan)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1872)
* ''King''
: South Devon Railway 2-4-0 locomotives#King, SDR 2-4-0T (1871 - 1878)

L

* ''Lagoon''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1876)
* ''Lalla Rookh'' (Literary: Lalla-Rookh)
: GWR Waverley Class, GWR Waverley class 4-4-0 (1855 - 1872)
* ''Lance'' (Speed: Lance)
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1870)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1851 - 1873)
: South Devon Railway Leopard class, SDR Leopard class 4-4-0ST (1875 - 1892)
* ''Lark'' (Bird: Lark)
: South Devon Railway 0-4-0 locomotives#Raven class, SDR Raven class 0-4-0ST (1874 - 1892)
* ''Laurel'' (Tree: Bay Laurel)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1864 - 1872)
* ''Leander'' (Greek mythology: Hero and Leander)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1852 - 1875)
* ''Leo'' (Zodiac: Leo (astrology), Leo)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1870)
* ''Leonidas'' (Classical ruler: Leonidas I)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1863 - 1881)
* ''Leopard'' (Fast animal: Leopard)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1878)
: South Devon Railway Leopard class, SDR Leopard class 4-4-0ST (1872 - 1893)
* ''Leopold'' (Famous personality: Leopold I of Belgium)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1856 - 1877)
* ''Lethe'' (Greek mythology: Lethe)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1878)
* ''Libra'' (Zodiac: Libra (astrology), Libra)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1871)
* ''Liffey'' (Geography: River Liffey)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1855 - 1872)
* ''Lightning'' (Speed: Lightning)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1847 - 1878)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1878 - 1892)
* ''Lily'' (Flower: Lilium, Lily)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1864 - 1872)
* ''Lion'' (Powerful animal: Lion)
: GWR Sharp, Roberts locomotives, GWR Sharp, Roberts 2-2-2 (1838 - 1847)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1859 - 1883)
* ''Load Star''
: GWR Star Class, GWR Star class 2-2-2 (1841 - 1870)
* ''Locke'' (Famous engineer: Joseph Locke)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1863 - 1881)
* ''Locust'' (Insect: Locust)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1876)
* ''London'' (Geography: London)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1865 - 1873)
* ''Lord of the Isles'' (Leader of people: Lord of the Isles)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1851 - 1884)
* ''Lucan'' (Roman personality: Lucan (poet), Lucan)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1855 - 1872)
* ''Lucifer'' (Roman mythology: Lucifer)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1870)
* ''Lucretius'' (Roman personality: Lucretius)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1854 - 1872)
* ''Luna'' (Roman mythology: Selene, Luna)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1863 - 1880)
* ''Lynx'' (Fast animal: Lynx)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 -1870)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1859 - 1876)

M

* ''Magi'' (Classical peoples: Magi)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1856 - 1879)
* ''Magpie'' (Bird: Magpie)
: Carmarthen and Cardigan Railway#Locomotives, CCR 4-4-0T (1861 - 1872)
: Carmarthen and Cardigan Railway#Locomotives, SDR 4-4-0ST (1872 - 1889)
* ''Mammoth'' (Powerful animal: Mammoth)
: GWR Pyracmon Class, GWR Pyracmon class 0-6-0 (1848 - 1873)
* ''Mars'' (Roman mythology: Mars (mythology), Mars)
: GWR Mather, Dixon locomotives, GWR Mather, Dixon 2-2-2 (1840 - 1840)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1868)
* ''Mazeppa'' (Literature: Mazeppa (Byron), Mazeppa)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1868)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1859 - 1885)
* ''Medea'' (Greek mythology: Medea)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1873)
* ''Medusa'' (Greek mythology: Medusa)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1864)
* ''Melling''
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1877)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0T (1877 - 1892)
* ''Mentor'' (Greek mythology: Mentor)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1867)
* ''Mercury'' (Roman mythology: Mercury (mythology), Mercury)
: GWR Mather, Dixon locomotives, GWR Mather, Dixon 2-2-2 (1839 - 1843)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1865)
* ''Meridian''
: GWR Sun Class, GWR Sun class 2-2-2 (1840 - 1870)
* ''Mersey'' (Geography: River Mersey)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1857 - 1879)
* ''Meteor'' (Speed: Meteor)
: GWR Sun Class, GWR Sun class 2-2-2 (1840 - 1864)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1851 - 1881)
* ''Metis'' (Greek mythology: Metis (mythology), Metis)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1855 - 1877)
* ''Midas'' (Greek mythology: Midas)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1875)
* ''Miles''
: GWR Sir Watkin Class, GWR Sir Watkin class 0-6-0T (1866 - 1888)
* ''Milo'' (Roman personality: Titus Annius Milo)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1866)
* ''Minerva'' (Roman mythology: Minerva)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1877)
* ''Minos'' (Greek mythology: Minos)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1870)
* ''Mogul'' (Leader of people: Magnate, Mogul)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1872)
* ''Mole'' (Geography: River Mole, Devon, River Mole)
: North Devon Railway#Bristol and Gloucester 2-2-2, NDR 2-2-2 (1855 - 1870)
* ''Monarch'' (Leader of people Monarch)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1879)
* ''Moose'' (Animal: Moose)
: GWR Prince Class, GWR Prince class 2-2-2 (1846 - 1870)
* ''Morning Star''
: GWR Star Class, GWR Star class 2-2-2 (1839 - 1869)
* ''Mosquito'' (Insect: Mosquito)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1877)
* ''Murdoch'' (Famous engineer: William Murdoch)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1892)
* ''Myrtle'' (Flower: Myrtus, Myrtle)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1864 - 1873)

N

* ''Napoleon'' (Famous personality: Napoleon I of France)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1856 - 1880)
* ''Nelson'' (Famous people: Horatio Nelson, 1st Viscount Nelson)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1873)
* ''Nemesis'' (Greek mythology: Nemesis (mythology), Nemesis)

:GWR Ariadne Class, GWR Standard Goods 0-6-0 (1855 - 1877)
* ''Neptune'' (Roman mythology: Neptune (mythology), Neptune)
: GWR Charles Tayleur locomotives, GWR Charles Tayleur 2-2-2 (1838 - 1840)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1881)
* ''Nero'' (Roman personality: Nero)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1855 - 1877)
* ''Newport'' (Geography: Newport, Wales, Newport)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1866 - 1874)
* ''Newquay'' (Geography: Newquay)
: Newquay and Cornwall Junction Railway, NCJR 2-4-0T (c.1869 - 1874)
* ''Nimrod'' (Classical leader: Nimrod (king), Nimrod)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1877)
* ''Nora Creina'' (Literary muse:''Lesbia hath a beaming eye'')
: GWR Caesar Class, GWR Caesar class 0-6-0 (1851 - 1872)
* ''North Star'' (Astronomy: Pole star)
: GWR Star Class, GWR Star class 2-2-2 (1837 - 1871)
: GWR Star Class#Replica, North Star replica 2-2-2 (Built 1925)

O

* ''Octavia'' (Roman personality: Claudia Octavia)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1855 - 1873)
* ''Olympus'' (Greek mythology: Mount Olympus)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1879)
* ''Orion'' (Greek personality: Orion of Thebes)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1867)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1853 - 1878)
* ''Orpheus'' (Greek mythology: Orpheus)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1877)
* ''Oscar'' (Famous personality: Oscar I of Sweden)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1856 - 1880)
* ''Orson''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1874)
* ''Osiris'' (Egyptian mythology: Osiris)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1853 - 1873)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1855 - 1877)
: South Devon Railway Leopard class, SDR Leopard class 4-4-0ST (1875 - 1892)
* ''Ostrich'' (Bird: Ostrich)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1865)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1852 - 1877)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1877)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0T (1877 - 1892)
* ''Otho'' (Famous personality: Otto of Greece)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1856 - 1880)
* ''Ovid'' (Roman personality: Ovid)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1854 - 1873)
* ''Owl'' (Bird: Owl)
: South Devon Railway 0-4-0 locomotives#Owl class, SDR Owl class 0-4-0WT (1873 - 1893)
* ''Oxford'' (Geography: Oxford)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1866 - 1874)

P

* ''Pallas'' (Greek mythology: Pallas (Giant), Pallas)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1856 - 1879)
* ''Pandora'' (Greek mythology: Pandora)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1863 - 1880)
* ''Panthea''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1856 - 1878)
* ''Panther'' (Powerful animal: Leopard, Panther)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1869)
* ''Pasha'' (Leader of people: Pasha)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1847 - 1876)
* ''Peacock'' (Famous engineer: Richard Peacock)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1866 - 1875)
* ''Pearl''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1852 - 1878)
* ''Pegasus'' (Greek mythology: Pegasus)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1868)
* ''Pelops'' (Greek mythology: Pelops)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1855 - 1876)
* ''Penn''
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1866 - 1877)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0T (1877 - 1892)
* ''Penwith'' (Geography: Penwith)
: West Cornwall Railway#Locomotives, WCR 2-4-0ST (1872 - 1888)
* ''Peri''
: GWR Prince Class, GWR Prince class 2-2-2 (1846 - 1870)
* ''Perseus'' (Greek mythology: Perseus)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1850 - 1880)
* ''Phlegethon'' (Greek mythology: Phlegethon)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1866)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1866 - 1887)
* ''Phoenix'' (Greek mythology: Phoenix (mythology), Phoenix)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1870)
: Newquay and Cornwall Junction Railway, NCJR (c.1869 - 1874)
* ''Pices'' (Zodiac: Pisces (astrology), Pisces)
: GWR Leo Class, GWR Leo class 2-4-0 (1842 - 1874)
* ''Pilot''
: Bristol and Gloucester Railway#Bristol and Gloucester 2-4-0, BGR 2-4-0 (1844 - 1851)
* ''Pioneer''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1877)
* ''Pirate'' (Literary: The Pirate (novel), The Pirate)
: GWR Waverley Class, GWR Waverley class 4-4-0 (1855 - 1876)
* ''Planet''
: GWR Mather, Dixon locomotives, GWR Mather, Dixon 2-2-2 (1839 - 1840)
* ''Plato'' (Greek personality: Plato)
: GWR Banking Class, GWR Banking class 0-6-0ST (1854 - 1883)
* ''Plutarch'' (Greek personality: Plutarch)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1862 - 1875)
* ''Pluto'' (Roman mythology: Pluto (mythology), Pluto)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1870)
: South Devon Railway Gorgon class, SDR Gorgon class 4-4-0ST (1866 - 1892)
* ''Plutus'' (Greek mythology: Plutus)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1855 - 1874)
* ''Plym'' (Geography: River Plym)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1859 - 1875)
* ''Polar Star''
: GWR Star Class, GWR Star class 2-2-2 (1840 - 1870)
* ''Pollux'' (Greek mythology: Castor and Pollux)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1866)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1865 - 1892)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1866 - 1877)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0T (1877 - 1892)
* ''Premier''
: GWR Mather, Dixon locomotives, GWR Mather, Dixon 2-2-2 (1837 - 1840)
: GWR Premier Class, GWR Premier class 0-6-0 (1846 - 1869)
* ''Priam'' (Classical ruler: Priam)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1864)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1851 - 1876)
* ''Prince''
: GWR Prince Class, GWR Prince class 2-2-2 (1846 - 1870)
: South Devon Railway 2-4-0 locomotives#Prince class, SDR 2-4-0ST (1871 - 1892)
* ''Princess''
: South Wales Mineral Railway, SWMR 0-6-0ST (1863 - 1872)
* ''Prometheus'' (Greek mythology: Prometheus)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1850 - 1887)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1888 - 1892)
* ''Proserpine'' (Greek mythology: Persephone, Proserpine)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1873)
* ''Psyche'' (Greek mythology: Cupid and Psyche)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1874)
* ''Pyracmon''
: GWR Pyracmon Class, GWR Pyracmon class 0-6-0 (1847 - 1872)
* ''Python'' (Greek mythology: Python (mythology), Python)
: South Devon Railway Buffalo class, SDR Buffalo class 0-6-0ST (1874 - 1892)

Q

* ''Queen''
: GWR Prince Class, GWR Prince class 2-2-2 (1847 - 1870)
: Torbay and Brixham Railway, TBR 0-4-0T (1868 - 1882)

R

* ''Raven'' (Bird: Raven)
: South Devon Railway 0-4-0 locomotives#Raven class, SDR and TBR Raven class 0-4-0ST (1874 - 1892)
* ''Reading'' (Geography: Reading, Berkshire, Reading)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1866 - 1874)
* ''Red Gauntlet'' (Literary: Redgauntlet)
: GWR Waverley Class, GWR Waverley class 4-4-0 (1855 - 1876)
* ''Red Star''
: GWR Star Class, GWR Star class 2-2-2 (1840 - 1865)
* ''Redruth'' (Geography: Redruth)
: West Cornwall Railway#Locomotives, WCR 0-6-0ST (1871 - 1887)
* ''Regulus'' (Roman mythology: see Basilisk)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1862 - 1883)
* ''Remus'' (Roman mythology: Romulus and Remus)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1879)
: South Devon Railway Remus class, SDR Remus class 0-6-0ST (1866 - 1886)
* ''Rennie'' (Famous engineer: John Rennie (son), John Rennie)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1863 - 1878)
* ''Rhea'' (Greek mythology: Rhea (mythology), Rhea)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1855 - 1872)
* ''Rhondda'' (Geography: River Rhondda)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1859 - 1877)
* ''Rising Star''
: GWR Star Class, GWR Star class 2-2-2 (1840 - 1871)
* ''Rob Roy'' (Literary: Rob Roy (novel), Rob Roy)
: GWR Waverley Class, GWR Waverley class 4-4-0 (1855 - 1872)
* ''Roberts'' (Famous engineer: Sharp, Roberts and Company, Richard Roberts)

: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865 - 1877)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0T (1877 - 1892)
* ''Robin Hood'' (Literature: Robin Hood)
: GWR Waverley Class, GWR Waverley class 4-4-0 (1855 - 1876)
: Severn and Wye Railway, S&WR 0-6-0T (1868 - 1872)
* ''Rocket'' (Speed: Rocket)
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1870)
: South Devon Railway Comet class, SDR Comet class 4-4-0ST (1851 - 1877)
* ''Rougemont''
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1848 - 1879)
* ''Romulus'' (Roman mythology: Romulus and Remus)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1877)
: South Devon Railway Remus class, SDR Remus class 0-6-0ST (1866 - 1892)
* ''Rook'' (Bird: Rook (bird), Rook)
: South Devon Railway 0-4-0 locomotives#Raven classSDR, Raven class 0-4-0ST (1874 - 1892)
* ''Rosa''
: Llynvi and Ogmore Railway#Locomotives, LVR and SDR 4-4-0ST (1863 - 1874)
: Llynvi and Ogmore Railway#Locomotives, SDR 0-6-0ST (1874 - 1885)
* ''Rose'' (Flower: Rose)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1863 - 1877)
* ''Rover'' (Speed: Wiktionary:rover, Rover)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1850 - 1871)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1871 - 1892)
* ''Royal Star''
: GWR Star Class, GWR Star class 2-2-2 (1841 - 1871)
* ''Ruby''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1881)

S

* ''Sagittarius'' (Zodiac: Sagittarius (astrology), Sagittarius)
: GWR Leo Class, GWR Leo class 2-4-0 (1842 - 1871)
* ''Salus'' (Greek mythology: Hygieia, Salus)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1877)
* ''Sampson'' (Biblical: Samson, Sampson)
: GWR Hercules Class, GWR Hercules class 0-6-0 (1842 - 1870)
: South Devon Railway Tornado class, SDR Tornado class 0-6-0ST (1855 - 1884)
* ''Sappho'' (Greek personality: Sappho)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1854 - 1873)
* ''Saturn'' (Roman mythology: Saturn (mythology), Saturn)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1878)
* ''Saunders''
: GWR Sir Watkin Class, GWR Sir Watkin class 0-6-0T (1866 - 1872)
: GWR Sir Watkin Class, SDR 0-6-0ST (1872 - 1892)
* ''Scorpio'' (Zodiac: Scorpius, Scorpio)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1872)
* ''Sebastopol'' (British battle: Siege of Sevastopol (1854–1855), Sebastopol)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1855 - 1880)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1880 - 1892)
* ''Sedley''
: South Devon Railway Gorgon class, SDR Gorgon class 4-4-0ST (1866 - 1885)
* ''Seneca'' (Roman personality: Seneca the Younger)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1854 - 1872)
* ''Severn'' (Geography: River Severn)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1857 - 1873)
* ''Severus'' (Roman personality: Septimius Severus)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1878)
* ''Shah'' (Leader of people: Shah)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1872)
* ''Shamrock'' (Flower: Shamrock)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1863 - 1877)
* ''Shannon'' (Geography: River Shannon)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1857 - 1880)
* ''Sharp'' (Famous engineer: Sharp, Roberts and Company, Thomas Sharp)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1866 - 1887)
* ''Shrewsbury'' (Geography: Shrewsbury)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1866 - 1872)
* ''Shooting Star''
: GWR Star Class, GWR Star class 2-2-2 (1841 - 1871)
* ''Sibyl'' (Greek mythology: Sibyl)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1878)
* ''Sir Watkin''
: GWR Sir Watkin Class, GWR Sir Watkin class 0-6-0T (1866 - 1892)
* ''Sirius'' (Star: Sirius)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1880)
* ''Slaughter'' (Famous engineer: Avonside Engine Company, Edward Slaughter)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1865)
* ''Smeaton'' (Famous engineer: John Smeaton)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1863 - 1877)
* ''Snake'' (Animal: Snake)
: GWR Haigh Foundry locomotives, GWR Haigh Foundry 2-2-2 (1838 - 1869)
* ''Sol'' (Sun: Sol)
: South Devon Railway Gorgon class, SDR Gorgon class 4-4-0ST (1866 - 1892)
* ''Sphinx'' (Egyptian mythology: Sphinx)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1873)
* ''Spit Fire''
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1878)
* ''Stag'' (Fast animal: Stag)
: South Devon Railway Leopard class, SDR Leopard class 4-4-0ST (1872 - 1893)
* ''Star''
: North Devon Railway#Bristol and Gloucester 2-2-2, NDR 2-2-2 (1855 - 1870)
* ''Statius'' (Roman personality: Statius)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1855 - 1871)
* ''Stentor'' (Greek personality: Stentor)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1842 - 1867)
* ''Stephenson'' (Famous engineer: George Stephenson)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1863 - 1878)
* ''Steropes'' (Greek mythology: Steropes)
: GWR Pyracmon Class, GWR Pyracmon class 0-6-0 (1848 - 1871)
* ''Stewart'' (Famous engineer: Sharp, Roberts and Company, Charles Stewart)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1866 - 1877)
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0T (1877 - 1892)
* ''Stiletto''
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1870)
* ''Stromboli'' (Geography: Stromboli)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1870)
: GWR Banking Class, SDR 0-6-0ST (1872 - 1889)
* ''Stroud'' (Geography: Stroud)
: Bristol and Gloucester Railway#Bristol and Gloucester 2-2-2-, BGR 2-2-2 (1844 - 1855)
* ''Sultan'' (Leader of people: Sultan)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1847 - 1874)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1876 - 1892)
* ''Sun''
: GWR Sun Class, GWR Sun class 2-2-2 (1840 - 1873)
* ''Sunbeam''
: GWR Sun Class, GWR Sun class 2-2-2 (1840 - 1870)
* ''Swallow'' (Fast bird: Swallow)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1849 - 1871)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1871 - 1892)
* ''Swindon'' (Geography: Swindon)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1865 - 1874)
* ''Sylla''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1862 - 1878)
* ''Sylph''
: GWR Prince Class, GWR Prince class 2-2-2 (1847 - 1870)

T

* ''Talbot''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1877)
* ''Tamar'' (Geography: River Tamar)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1859 - 1880)
* ''Tantalus'' (Greek mythology: Tantalus)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1862 - 1876)
* ''Tartar'' (Classical peoples: Tartars)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1848 - 1876)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1876 - 1892)
* ''Taurus'' (Zodiac: Taurus (astrology), Taurus)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1870)
: South Devon Railway locomotive Taurus, SDR 0-6-0ST (1869 - 1892)
* ''Taw'' (Geography: River Taw)
: North Devon Railway#Taw, NDR 2-2-2 (1855 - c.1860)
* ''Tay'' (Geography: River Tay)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1858 - 1881)
* ''Teign'' (Geography: River Teign)
: GWR Haigh Foundry locomotives, GWR Haigh Foundry 2-2-2 (1846 - 1851?)
* ''Telford'' (Famous engineer: Thomas Telford)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1863 - 1879)
* ''Telica'' (Geography: Telica)
: GWR Premier Class, GWR Premier class 0-6-0 (1846 - 1870)
* ''Thames'' (Geography: River Thames)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1877)
* ''Theocritus'' (Greek personality: Theocritus)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1854 - 1873)
* ''Theseus'' (Greek mythology: Theseus)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1862 - 1880)
* ''Thistle'' (Flower: Thistle)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1863 - 1874)
* ''Thunderer''
: GWR Thunderer locomotive, GWR Harrison 2-2-2+6 (1838 - 1839)
: GWR Caesar Class, GWR Caesar class 0-6-0 (1851 - 1874)
* ''Tiger'' (Powerful animal: Tiger)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1873)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1860 - 1884)
* ''Timour''

: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1849 - 1871)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1873 - 1892)
* ''Tiny''
: South Devon Railway 0-4-0 locomotives#Tiny, SDR 0-4-0vb (1868 - 1883)
* ''Titan'' (Greek mythology: Titan (mythology), Titan)
: South Devon Railway Gorgon class, SDR Gorgon class 4-4-0ST (1866 - 1886)
* ''Tite''
: North Devon Railway#Bristol and Gloucester 2-2-2, NDR 2-2-2 (1856 - 1870)
* ''Tityos''
: GWR Hercules Class, GWR Hercules class 0-6-0 (1842 - 1870)
* ''Tornado'' (Power: Tornado)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1849 - 1881)
: South Devon Railway Tornado class, SDR Tornado class 0-6-0ST (1854 - 1884)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1888 - 1892)
* ''Trafalgar'' (British battle: Battle of Trafalgar)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1871)
* ''Trevethick'' (Famous engineer: Richard Trevithick)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1863 - 1878)
* ''Tugwell''
: Bristol and Gloucester Railway#Bristol and Gloucester 2-4-0, BGR 2-4-0 (1844 - 1856)
* ''Tweed'' (Geography: River Tweed)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1857 - 1874)
* ''Tyne'' (Geography: River Tyne)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (18759 -1877)
* ''Typhon'' (Greek mythology: Typhon)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1855 - 1879)

U

* ''Ulysses'' (Literature: Odysseus, Ulysses)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1872)
* ''Una''
: Llynvi and Ogmore Railway#Locomotives, LVR and SDR 0-6-0ST (1862 - 1892)

V

* ''Venus'' (Roman mythology: Venus (mythology), Venus)
: GWR Charles Tayleur locomotives, GWR Charles Tayleur 2-2-2 (1838 - 1868)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1870)
: North Devon Railway#Bristol and Gloucester 2-2-2, NDR 2-4-0 (1856 - 1870)
* ''Vesper'' (Roman mythology: Hesperus, Vesper)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1879)
* ''Vesta'' (Roman mythology: Vesta (mythology), Vesta)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1841 - 1864)
* ''Vesuvius'' (Geography: Vesuvius)
: GWR Premier Class, GWR Premier class 0-6-0 (1846 - 1870)
* ''Victor Emmanuel'' (Famous people: Victor Emmanuel II of Italy)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1856 - 1878)
* ''Victoria'' (Famous people: Victoria of the United Kingdom, Queen Victoria)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1856 - 1879)
* ''Violet'' (Flower: Violet (plant), Violet)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1864 - 1872)
* ''Viper'' (Animal: Viperidae, Viper)
: GWR Haigh Foundry locomotives, GWR Haigh Foundry 2-2-2 (1838 - 1868)
* ''Virgil'' (Roman personality: Virgil)
: GWR Bogie Class, GWR Bogie class 4-4-0ST (1854 - 1873)
* ''Virgo'' (Zodiac: Virgo (astrology), Virgo)
: GWR Leo Class, GWR Leo class 2-4-0 (1841 - 1870)
* ''Vixen'' (Animal: Fox, Vixen)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1854 - 1879)
* ''Volcano'' (Power: Volcano)
: GWR Caesar Class, GWR Caesar class 0-6-0 (1851 - 1874)
: South Devon Railway Tornado class, SDR Tornado class 0-6-0ST (1854 - 1877)
* ''Vulcan'' (Greek mythology: Vulcan (mythology), Vulcan)
: GWR Charles Tayleur locomotives, GWR Charles Tayleur 2-2-2 (1837 - 1868)
: South Devon Railway Buffalo class, SDR Buffalo class 0-6-0ST (1874 - 1892)
* ''Vulture'' (Bird: Vulture)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1870)

W

* ''Warhawk''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1877)
* ''Warlock'' (Magician: Warlock)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1848 - 1874)
: GWR Iron Duke Class#Rover class, GWR Rover class 4-2-2 (1876 - 1892)
* ''Warrior'' (Power: Warrior)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1861 - 1872)
* ''Wasp'' (Insect: Wasp)
: GWR Metropolitan Class, GWR Metropolitan class 2-4-0T (1862 - 1875)
* ''Watt'' (Famous engineer: James Watt)
: GWR Victoria Class, GWR Victoria class 2-4-0 (1863 - 1880)
* ''Waverley'' (Literary: Waverley (novel), Waverley)
: GWR Waverley Class, GWR Waverley class 4-4-0 (1855 - 1876)
* ''Wear'' (Geography: River Wear)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1859 - 1879)
* ''Weasel'' (Animal: Weasel)
: South Devon Railway 0-4-0 locomotives#Owl class, SDR Owl class 0-4-0WT (1873 - 1882)
* ''Wellington'' (Famous people: Arthur Wellesley, 1st Duke of Wellington)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1873)
* ''Western Star''
: GWR Star Class, GWR Star class 2-2-2 (1841 - 1866)
* ''Whetham''
: GWR Sir Watkin Class, GWR Sir Watkin class 0-6-0T (1866 - 1889)
* ''Wickwar'' (Geography: Wickwar)
: Bristol and Gloucester Railway#Bristol and Gloucester 2-2-2-, BGR 2-2-2 (1844 - 1853)
* ''Wild Fire'' (Power: Wildfire)
: GWR Firefly Class, GWR Fire Fly class 2-2-2 (1840 - 1867)
* ''Windsor'' (Geography: Windsor, Berkshire, Windsor)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1866 - 1873)
* ''Witch''
: GWR Prince Class, GWR Prince class 2-2-2 (1846 - 1870)
* ''Wizard'' (Magician: Warlock, Wizard)
: GWR Iron Duke Class#Iron Duke class, GWR Iron Duke class 4-2-2 (1848 - 1875)
* ''Wolf'' (Animal: Wolf)
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1873)
: South Devon Railway Eagle class, SDR Eagle class 4-4-0ST (1859 - 1878)
* ''Wolverhampton'' (Geography: Wolverhampton)
: GWR Swindon Class, GWR Swindon class 0-6-0 (1866 - 1874)
* ''Wood''
: GWR Hawthorn Class, GWR Hawthorn class 2-4-0 (1866 - 1892)
* ''Wye'' (Geography: River Wye)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1859 - 1879)

X

* ''Xerxes'' (Classical ruler: Xerxes I of Persia)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1863 - 1882)

Y

* ''Yataghan''
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1871)
* ''Yeo'' (Geography: River Yeo
: North Devon Railway#Dart and Yeo, NDR 2-2-2 (1857 - 1877)

Z

* ''Zebra'' (Animal: Zebra)
: GWR Sun Class, GWR Sun class 2-2-2 (1841 - 1871)
: South Devon Railway Gorgon class, SDR Gorgon class 4-4-0ST (1866 - 1892)
* ''Zetes'' (Greek mythology:Zetes)
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1855 - 1877)
* ''Zina''
: GWR Ariadne Class, GWR Standard Goods 0-6-0 (1853 - 1874)

References

*
*
*
* {{cite book , last = Nicholas , first = John , title = The North Devon Line , publisher = Oxford Publishing Company , year = 1992 , location = Sparkford , isbn = 0-86093-461-6

Broad gauge (7 feet) railway locomotives,
British railway-related lists, 7-foot Gauge Railway Locomotive Names