M41

• M-41 (Michigan highway), a former state highway in Michigan • M41 (Cape Town), a Metropolitan Route in Cape Town, South Africa • M41 (Johannesburg), a Metropolitan Route in Johannesburg, South Africa • M41 (Durban), a Metropolitan Route near Durban, South Africa • M41 motorway, a motorway in England • M41 highway, a major highway in Central Asia which crosses the Pamir Mountains • BMW M41, a 1994 straight-4 diesel engine == Military ==

• M41 Walker Bulldog, an American light tank • M41 155 mm howitzer motor carriage, developed from M24 Chaffee • M1941 Johnson rifle • M1941 Johnson light machine gun • Macchi M.41 and M.41bis, an Italian flying boat fighter of the 1930s • Type 41 75 mm mountain gun, a Japanese artillery gun • , a British naval minesweeper • M41 light rifle/TLR-41, a possible designation for the Thompson light rifle • M1941 field jacket, a World War II-era US Army uniform jacket == Entertainment ==

• M41A pulse rifle, a fictional assault rifle from the 1986 film Aliens and related media • The 41st millennium, as expressed in the game Warhammer 40000. == Other ==

• Messier 41 (M41), an open star cluster in the constellation Canis Major • M41, a postcode in the M postcode area that covers the town of Urmston, United Kingdom • the 41st Mersenne prime