In military terms, 112th Brigade or 112th Infantry Brigade may refer to:

Germany 112th Panzer Brigade

Soviet Union 112th "Revolutionary Mongolia" Tank Brigade, a unit of the Red Army, funded by contributions from the People's Republic of Mongolia, during World War II

Ukraine 112th Territorial Defense Brigade, a unit of the Ukrainian Territorial Defense Forces

United Kingdom 112th Brigade (United Kingdom), a British Army formation during World War I 112th Brigade, Royal Field Artillery (United Kingdom), a British Army unit during World War I

United States 112th Medical Brigade

See also 112th Division (disambiguation) 112th Regiment (disambiguation)