The Lavochkin La-11 was an early post-World War II Soviet long-range piston-engined fighter aircraft. The design was essentially that of a Lavochkin La-9 with additional fuel tanks and the deletion of one of the four 23 mm Nudelman-Suranov NS-23 cannons. Like the La-9, the La-11 was designed to be a low to medium-altitude general-purpose fighter, although the additional fuel tanks were added with the intent of employing the La-11 in the escort fighter role.

The Lavochkin La-9 was a Soviet fighter aircraft produced shortly after World War II. It was one of the last piston engined fighters to be produced before the widespread adoption of the jet engine.