6th Infantry Regiment may refer to the following units:
6th Infantry Regiment "Aosta" 6th Infantry Regiment (Duchy of Warsaw) 6th Infantry Regiment (Greece) 6th Infantry Regiment (Lithuania) 6th Infantry Regiment (United States) 6th Foreign Infantry Regiment, France 6th United States Colored Infantry Regiment Infantry Regiment "Saboya" No. 6
See also 6th Infantry (disambiguation) 6th Regiment (disambiguation)