The Gryazev-Shipunov GSh-30-2 is a powerful twin-barrel cannon used on certain Russian military aircraft.

It is not related to the Gryazev-Shipunov GSh-30-1, but is heavy-duty, gas-operated weapon, probably operating on the Gast principle (like the Gryazev-Shipunov GSh-23L). Its rate of fire is about 3,000 rounds per minute. Weight and muzzle velocity are unknown, although because the weapon is designed to be rugged and resistant to dirt, it is probably quite heavy. The GSh-30-2 may have the capability of using depleted uranium enhanced armor-piercing shells.

The GSh-30-2 is used by the Sukhoi Su-25 and some marks of the Mi-24 helicopter.