Julianus may refer to: * ''Julianus'' (frog), a genus of frogs in the family Hylidae *

Flavius Claudius Julianus Julian ( la, Flavius Claudius Julianus; grc-gre, Ἰουλιανός ; 331 – 26 June 363) was Roman emperor from 361 to 363, as well as a notable philosopher and author in Greek. His rejection of Christianity, and his promotion of Neoplaton ...

(331–363), Roman emperor from 361 to 363 best known as Julian *

Saint Julianus (disambiguation) :''See also Saint Julius (disambiguation)'' Saint Julian may refer to: * Julian of Alexandria (died 250), one of the Martyrs of Alexandria under Decius * Julian of Carthage (died 259), one of the Martyrs of Carthage under Valerian *Julian of Anti ...

, several Roman-era Christian saints *

Julianus (consul) Julianus is the cognomen of a Roman senator whose tenure as suffect consul with one Castus as his colleague, is known from a number of brick stamps. A number of experts have surmised he is to be identified with a proconsul of Asia mentioned in the ...

(fl. 130 AD), Roman senator *

Julius Julianus Julius Julianus ( 315–325 AD) was a Roman politician, the grandfather and namesake of the future emperor Julian. Life He served Licinius as praetorian prefect from at least spring 315 to September 324, until Constantine I definitively defeate ...

(fl. 315–325 AD), Roman politician *

Lucius Julius Julianus Lucius Julius Julianus was a ''legatus legionis'' of the Legio II Augusta and a Roman praetor. Biography Lucius Julius Julianus most likely became a ''legatus'' two years after he became a praetor. During his commission he fought the Picts in Bri ...

, Roman military officer *

Lucius Julius Vehilius Gratus Julianus Lucius Julius Vehilius Gratus Julianus was a soldier and an eques who held a number of military and civilian appointments during the reigns of Marcus Aurelius and his son Commodus. Julianus received honors two separate times for his military ser ...

, Roman military officer