Pietro Micca (pennant number MC) was an Italian submarine which served with the Regia Marina in World War II.

She was the third ship named after Pietro Micca, the Savoyard soldier who became a national hero for his sacrifice in the defence of Turin against the French troops in 1706.

This boat was the prototype for a class of fast, long range submarines with conventional torpedo armament, naval mine laying capability, and useful secret transport capacity.

Italy kept the vessel in the Mediterranean Sea despite Kriegsmarine requests for temporary assignment to BETASOM to assist minelaying at Freetown, Cape Town, and Madagascar.

Transport of food, gasoline and ammunition to the Aegean Sea and North Africa became her primary mission by the end of 1940; and Micca transported a total of 2,163 tons of essential cargo in 14 resupply missions before being torpedoed by HMS Trooper southwest of Cape Santa Maria di Leuca at 06:05 on 29 July 1943.