The 6th Regiment may refer to:
;France
*
6th Foreign Infantry Regiment
The 6th Foreign Infantry Regiment (french: 6e Régiment Étranger d'Infanterie, 6e REI) was an infantry regiment of the Foreign Legion in the French Army from 1939 to 1941 and again from 1949 to 1955.
History, creations and different nomin ...
;Greece
*
6th Infantry Regiment (Greece)
*
6th Archipelago Regiment
;United States
*
6th Marine Regiment (United States)
The 6th Marine Regiment (also referred to as "6th Marines") is an infantry regiment of the United States Marine Corps based at Marine Corps Base Camp Lejeune, North Carolina. The regiment falls under the command of the 2nd Marine Division of t ...
*
6th United States Colored Infantry Regiment
The 6th United States Colored Infantry Regiment was an African American unit of the Union Army during the American Civil War. A part of the United States Colored Troops, the regiment saw action in Virginia as part of the Richmond–Petersburg Cam ...
*
6th Cavalry Regiment (United States)
The 6th Cavalry ("Fighting Sixth'") is a regiment of the United States Army that began as a regiment of cavalry in the American Civil War. It currently is organized into aviation squadrons that are assigned to several different combat aviation ...
*
6th Infantry Regiment (United States)
The 6th Infantry Regiment ("Regulars") was formed 11 January 1812. Zachary Taylor, later the twelfth President of the United States, was a commander of the unit. The motto, "Regulars, By God!" derives from the Battle of Chippawa, in which Brit ...
;United Kingdom
*
6th Regiment of Foot (later Royal Warwickshire Fusiliers)
{{mil-unit-dis