C-class submarine

C-class submarine may refer to:

British C-class submarine, the last class of petrol-engined submarines of the Royal Navy Japanese Type C 1st class submarine, two classes of submarines of the Imperial Japanese Navy: Type C submarine I-52-class submarine (Type C3 submarine) Japanese Type C 3rd class submarine, three classes of submarines of the Imperial Japanese Navy: Ha-1-class submarine (Type C1 submarine) Ha-3-class submarine (Type C2 submarine) Ha-7-class submarine (Type C3 submarine) Spanish C-class submarine, six submarines of the Spanish Navy United States C-class submarine, five submarines of the United States Navy