M23, M.23 or M-23 may refer to:

Roads

M23 motorway The M23 is a motorway in the United Kingdom, running from the south of Hooley in Surrey, where it splits from the A23, to Pease Pottage, south of Crawley in West Sussex where it rejoins the A23. The northern end of the motorway starts on what ...

, a motorway in England *

M-23 (Michigan highway) M23, M.23 or M-23 may refer to: Roads * M23 motorway, a motorway in England * M-23 (Michigan highway), a highway designation formerly used in Michigan * Highway M23 (Ukraine) * M23 (Cape Town), a Metropolitan Route in Cape Town, South Africa * M23 ...

, a highway designation formerly used in Michigan *

Highway M23 (Ukraine) Highway M23 is one of the shortest Ukrainian international highway ( M-highway) which connects Berehove with Khust and runs in the southern portion of the region next to the Hungarian and Romanian borders. From Berehove to the little settlement ...

M23 (Cape Town) The City of Cape Town (Cape Town metropolitan area) like most South African metropolitan areas, uses Metropolitan or "M" routes for important intra-city routes, a layer below National (N) roads and Regional (R) roads. Each city's M roads are ind ...

, a Metropolitan Route in Cape Town, South Africa *

M23 (Pretoria) The M23 road is a short metropolitan route in the City of Tshwane in Gauteng, South Africa. It connects Elardus Park with Olympus via Moreleta Park. It consists of one street named De Villebois Mareuil Road. Route The M23 route begins just ea ...

, a Metropolitan Route in Pretoria, South Africa *

Federal Highway (Australia) Federal Highway is a highway in New South Wales and the Australian Capital Territory. It is a part of a motorway-standard link between Sydney and Canberra, and is also the main thoroughfare between those cities. The north-eastern end of Federal ...

, part of which is given the designation "M23"

Other uses

M23 (New York City bus) The 23rd Street Crosstown is a surface transit line on 23rd Street (Manhattan), 23rd Street in Manhattan, New York City. It currently hosts the M23 SBS bus route of the Metropolitan Transportation Authority (MTA)'s MTA Regional Bus Operations, ...

, a New York City Bus route in Manhattan *

BFW M.23 The BFW M.23, sometimes known as the Messerschmitt M 23, was a 1920s two-seat sporting aircraft designed by Willy Messerschmitt, and produced by ''Bayerische Flugzeugwerke'' (BFW). Examples won several prestigious races in 1929 and 1930. Develo ...

, two-seater sports plane * HMS ''M23'', a Royal Navy * The

Mathieu group M23 In the area of modern algebra known as group theory, the Mathieu group ''M''23 is a sporadic simple group of order : 2732571123 = 10200960 : ≈ 1 × 107. History and properties ''M''23 is one of the 26 sporadic groups and w ...

in the mathematical field of group theory *

M23 chemical mine The M23 is a United States steel cased chemical weapon, chemical landmine. The mine was developed in the late 1950s and early 1960s, and approximately 100,000 units were produced. The U.S. completed its destruction of its stock at the Umatilla Ch ...

, a US landmine *

m23 software distribution system m23 is a software distribution and management system for the Debian, Ubuntu, Kubuntu Linux, Xubuntu, Linux Mint, elementary OS, Fedora, CentOS and openSUSE distributions. m23 can partition and format clients and install a Linux operating sy ...

, a Linux software distribution and management system *

McLaren M23 The McLaren M23 was a Formula One racing car designed by Gordon Coppuck, with input from John Barnard, and built by the McLaren team. It was a development of the McLaren M16 Indianapolis 500 car. A Ford Cosworth DFV engine was used, which was pr ...

, a race car *

Messier 23 Messier 23, also known as NGC 6494, is an open cluster of stars in the northwest of the southern constellation of Sagittarius. It was discovered by Charles Messier in 1764. It can be found in good conditions with binoculars or a modestly sized t ...

(M23), an open star cluster in the constellation Sagittarius *

March 23 Movement The March 23 Movement (french: Mouvement du 23 mars), often abbreviated as M23 and also known as the Congolese Revolutionary Army (''Armée révolutionnaire du Congo''), is a rebel military group that is for the most part formed of ethnic Tutsi. ...

(M23), a rebel group operating in the Democratic Republic of the Congo **

M23 rebellion The M23 rebellion was an armed conflict in North Kivu, Democratic Republic of the Congo (DRC), that occurred between the March 23 Movement and government forces. The rebellion was part of continued fighting in the region after the formal end of ...

, a conflict involving the group * M23 derby, a football association match between Brighton and Hove Albion and Crystal Palace {{Letter-NumberCombDisambig Road disambiguation pages