80th Regiment or 80th Infantry Regiment may refer to:
80th Regiment of Foot (Royal Edinburgh Volunteers), a unit of the British Army, 1778–1783 80th Regiment of Foot (Staffordshire Volunteers), a unit of the British Army 80th Airmobile Regiment (Ukraine), a unit of the Ukrainian Army 80th Infantry Regiment (Imperial Japanese Army), a unit of the Japanese Army 80th Training Regiment (United States) a unit of the United States Army Reserve
American Civil War regiments 80th Illinois Volunteer Infantry Regiment, a unit of the Union (North) Army 80th Indiana Infantry Regiment, a unit of the Union (North) Army 80th New York Volunteer Infantry Regiment, a unit of the Union (North) Army 80th Ohio Infantry, a unit of the Union (North) Army 80th United States Colored Infantry Regiment, a unit of the Union Army in Louisiana
See also 80th Division (disambiguation) 80 Squadron (disambiguation)