The Myasishchev M-50 (Russian: Мясищев М-50; NATO reporting name Bounder) is a Soviet prototype four-jet engine supersonic strategic bomber which never attained service.

An unmanned M-51 intercontinental cruise missile variant was developed, which would have delivered multiple warheads on targets in the contiguous United States.

The magazine claimed that the aircraft was real beyond a doubt, stating that "A nuclear-powered bomber is being flight tested in the Soviet Union.

In reality, in the early 1960s Soviet Union did test a technology demonstrator for a nuclear-powered strategic bomber, Tupolev Tu-95LAL, similar to the somewhat earlier American Convair NB-36H project, but, being based on the turboprop Tu-95, it was never supersonic, it never flew under nuclear power (its main goal was to test the nuclear reactor shielding efficiency), and, moreover, it was developed by the Tupolev Design Bureau, as Myasischev company had lost the competition to develop the prototype.

When the functional ICBMs appeared, the majority of funding and development effort was shifted into that field, and in the early 1960s the project was stopped.