Users
- Austria:
- Kingdom of Bulgaria: Used by 1st Bulgarian SS Anti-Tank Brigade.
- Denmark
- Finland
- Greece: Limited post-war use.
- Indonesia
- Kingdom of Hungary
- Malaysia
- Netherlands
- Nazi Germany
- Norway: Post-war use.
- Kingdom of Romania: 10,600 MP-40s ordered in 1941 and delivered during 1942. A further 5,800 MP-41 SMGs were delivered in 1943.
- Philippines: Used by the Hukbahalap Communist resistance in World War II and Hukbalahap Rebellion.
- Poland
- Spain
- United States: Captured from the German Army in World War 2, used by US Coast Guard
- West Germany
- Yugoslavia: Used by the Partisans, captured in large numbers.
- North Vietnam: Used by DRV militias in the First and Second Indochina War
- Soviet Union: captured use
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