111th Regiment

111th Regiment or 111th Infantry Regiment may refer to:


 * 111th Regiment of Foot (Loyal Birmingham Volunteers), a unit of the British Army
 * 111th Regiment of Foot (1761), a unit of the British Army
 * 111th Infantry Regiment (United States), a unit of the United States Army
 * 111th Armored Cavalry Regiment, a unit of the United States Army National Guard
 * 111th Cavalry Regiment, a unit of the United States Army National Guard