Type 1 machine gun may refer to:
Type 1 heavy machine gun, infantry heavy machine gun chambered in 7.7×58mm Arisaka, used by the Imperial Japanese Army. Navy Type 1 machine gun, aircraft machine gun chambered in 7.92×57mm Mauser, used by the Imperial Japanese Navy Air Service. Army Type 1 machine gun, aircraft heavy machine gun chambered in 12.7×81mmSR Breda, used by the Imperial Japanese Army Air Service.