23rd Regiment

23rd Regiment may refer to:


 * Infantry regiments :


 * 23rd Marching Regiment of Foreign Volunteers, a unit of the French Army
 * 23rd Regiment of Bombay Light Infantry, a unit of the British Army
 * 23rd Regiment of Foot, a unit of the British Army
 * 23rd Infantry Regiment (United States), a unit of the United States Army
 * 23rd Marine Regiment (United States), a unit of the United States Army
 * 23rd Pennsylvania Infantry, a unit of the United States Army
 * 23rd Ohio Infantry, a unit of the United States Army
 * 23rd Arkansas Infantry Regiment, a unit of the United States Army
 * 23rd Tennessee Infantry Regiment, a unit of the United States Army
 * 23rd Indiana Infantry Regiment, a unit of the United States Army
 * 23rd Connecticut Infantry Regiment, a unit of the United States Army
 * 23rd Regiment Massachusetts Volunteer Infantry, a unit of the United States Army
 * 23rd Regiment Kentucky Volunteer Infantry, a unit of the United States Army
 * 23rd Wisconsin Volunteer Infantry Regiment, a unit of the United States Army
 * 23rd Iowa Volunteer Infantry Regiment, a unit of the United States Army


 * Cavalry regiments :


 * 23rd Light Dragoons, a unit of the British Army


 * Engineering regiments :


 * 23 Engineer Regiment (Air Assault) (United Kingdom), a unit of the British Army's Royal Engineers


 * Artillery regiments :


 * 23rd Field Regiment, RCA, a unit of the Royal Canadian Artillery


 * Armoury regiments :


 * 23rd Regiment Armory