44th Regiment
- 3rd East Anglian Regiment
- 44 Parachute Anti-Aircraft Regiment
- 44 Parachute Regiment (South Africa)
- 44th (East Essex) Regiment of Foot
- 44th Air Defense Artillery Regiment
- 44th Arkansas Infantry (Mounted)
- 44th Brigade (disambiguation)
- 44th Division (disambiguation)
- 44th Georgia Volunteer Infantry
- 44th Illinois Volunteer Infantry Regiment
- 44th Indiana Infantry Regiment
- 44th Infantry Regiment (United States)
- 44th Iowa Volunteer Infantry Regiment
- 44th Merwara Infantry
- 44th New York Volunteer Infantry Regiment
- 44th North Carolina Infantry
- 44th Ohio Infantry
- 44th Royal Tank Regiment
- 44th Tennessee Infantry Regiment
- 44th United States Colored Infantry
- 44th Virginia Infantry
- 44th Wisconsin Volunteer Infantry Regiment
- Essex Regiment
- Leicester Town Rifles
- Royal Anglian Regiment
- The Alabama Brigade (American Civil War)