27th Regiment

• 27 Squadron (disambiguation)
• 27th (Inniskilling) Regiment of Foot
• 27th Army (disambiguation)
• 27th Battalion (disambiguation)
• 27th Brigade (disambiguation)
• 27th Connecticut Infantry Regiment
• 27th Division (disambiguation)
• 27th Illinois Infantry Regiment
• 27th Indiana Infantry Regiment
• 27th Infantry Regiment
• 27th Iowa Volunteer Infantry Regiment
• 27th Lancers
• 27th Maine Volunteer Infantry Regiment
• 27th Marine Regiment (United States)
• 27th Michigan Volunteer Infantry Regiment
• 27th New Jersey Volunteer Infantry Regiment
• 27th New York Volunteer Infantry Regiment
• 27th Punjabis
• 27th Regiment Kentucky Volunteer Infantry
• 27th Wisconsin Volunteer Infantry Regiment
• XXVII Corps (disambiguation)