33rd Regiment

• 33 (Lancashire and Cheshire) Signal Regiment
• 33 Combat Engineer Regiment
• 33 Engineer Regiment (EOD)
• 33 Signal Regiment (Canada)
• 33 Squadron (disambiguation)
• 33rd (St Pancras) Searchlight Regiment, Royal Artillery
• 33rd Arkansas Infantry Regiment
• 33rd Brigade (disambiguation)
• 33rd Division (disambiguation)
• 33rd Field Artillery Regiment
• 33rd Illinois Volunteer Infantry Regiment
• 33rd Indiana Infantry Regiment
• 33rd Infantry Regiment (United States)
• 33rd Iowa Volunteer Infantry Regiment
• 33rd Light Dragoons
• 33rd New York Volunteer Infantry Regiment
• 33rd Ohio Infantry
• 33rd Pennsylvania Infantry
• 33rd Punjabis
• 33rd Regiment (3rd Burma Bn.) Madras Infantry
• 33rd Regiment (Vietnam People's Army)
• 33rd Regiment Alabama Infantry
• 33rd Regiment Kentucky Volunteer Infantry
• 33rd Regiment of Foot
• 33rd Tennessee Infantry Regiment
• 33rd United States Colored Infantry Regiment
• 33rd Virginia Infantry
• 33rd Wisconsin Volunteer Infantry Regiment