7th Regiment, or 7th Infantry Regiment may refer to:
Active units 7th Parachute Regiment Royal Horse Artillery 7th Field Regiment, Royal Australian Artillery 7th Field Artillery Regiment (United States) 7th Cavalry Regiment (United States) 7th Marine Regiment (United States) 7th Toronto Regiment, RCA - Canadian army 7th Infantry Regiment (South Korea) 7th Infantry Regiment (United States) 7th Army Aviation Regiment (Ukraine) 7th Infantry Regiment (Argentina) 7th Infantry Regiment (Lithuania) 7th Separate Guards Motor Rifle Regiment (Russia)
Former Units 7th Queen's Own Hussars - British army cavalry 7th Royal Tank Regiment - World War II British army unit 7th Medium Regiment, Royal Canadian Artillery - World War II Canadian army unit 2/7th Armoured Regiment (Australia) - World War II unit 7th Hariana Lancers - British Indian army unit 7th Light Cavalry - British Indian army unit 7th Regiment of Foot, later known as the Royal Fusiliers 7th Air Reconnaissance Regiment, Yugoslav Air Force unit
American Civil War units Cavalry 7th Regiment Illinois Volunteer Cavalry 7th Regiment Iowa Volunteer Cavalry 7th Michigan Volunteer Cavalry Regiment 7th West Virginia Volunteer Cavalry Regiment
Infantry 7th California Infantry Regiment (1861), also known as the 7th California Volunteer Infantry 7th Illinois Volunteer Infantry Regiment 7th Regiment Indiana Infantry (3 months) 7th Regiment Indiana Infantry (3 years) 7th Iowa Volunteer Infantry Regiment 7th Regiment Maryland Volunteer Infantry 7th Regiment Massachusetts Volunteer Infantry 7th Michigan Volunteer Infantry Regiment 7th Minnesota Volunteer Infantry Regiment 7th New Hampshire Volunteer Regiment 7th New York Militia Regiment 7th New York Volunteer Infantry Regiment 7th Ohio Infantry Regiment 7th United States Colored Infantry 7th Vermont Infantry 7th West Virginia Volunteer Infantry Regiment 7th Wisconsin Volunteer Infantry Regiment
American Revolutionary War units 7th Massachusetts Regiment 7th Virginia Regiment 7th Connecticut Regiment 7th Maryland Regiment 7th Continental Regiment 7th Pennsylvania Regiment 7th North Carolina Regiment
United States State militia and National Guard units 1865-1917 7th California Infantry Regiment (National Guard) 7th Illinois Infantry Regiment (National Guard) 7th Ohio Infantry Regiment (National Guard) 7th New York Militia Regiment (National Guard)
Spanish–American War units 7th California Volunteer Infantry Regiment (1898) 7th Illinois Volunteer Infantry Regiment (1898) 7th Ohio Volunteer Infantry Regiment (1898)
See also 7th Regiment Drum and Bugle Corps, based in New London, Connecticut Regiment, a military unit 7th Army (disambiguation) 7th Brigade (disambiguation) 7th Corps (disambiguation) 7th Division (disambiguation) 7th Signal Regiment (disambiguation)