50th Regiment

50th Regiment or 50th Infantry Regiment may refer to:


 * 50th Anti-aircraft Missiles Regiment (Romania), a unit of the Romanian Army
 * 50th (Queen's Own) Regiment of Foot, a unit of the United Kingdom Army
 * Shirley's Regiment (50th Regiment of Foot, American Provincials), a unit of the United Kingdom Army
 * 50th Royal Tank Regiment, a unit of the United Kingdom Army
 * 50th Infantry Regiment (United States), a unit of the United States Army


 * American Civil War regiments :


 * Union (Northern) regiments
 * 50th Illinois Volunteer Infantry Regiment
 * 50th Wisconsin Volunteer Infantry Regiment


 * Confederate (Southern) regiments
 * 50th North Carolina Regiment