101st Regiment

• 101st (Northumbrian) Regiment Royal Artillery
• 101st Battalion (disambiguation)
• 101st Brigade (disambiguation)
• 101st Cavalry Regiment
• 101st Division (disambiguation)
• 101st Field Artillery Regiment
• 101st Fighter-Training Aviation Regiment
• 101st Grenadiers
• 101st Illinois Volunteer Infantry Regiment
• 101st Indiana Infantry Regiment
• 101st Infantry Regiment (United States)
• 101st Regiment "Edmonton Fusiliers"
• 101st Regiment of Foot (disambiguation)
• 101st Squadron (disambiguation)
• Führer Grenadier Brigade