Leonid Stepanovich Dushkin (Леонид Степанович Душкин) (August 15, 1910 in the Spirove settlement of the Tver region – April 4, 1990), was a major pioneer of Soviet rocket engine technology.
In October 1932, he joined Fridrikh Tsander's brigade of GIRD, the Moscow rocket research group.
Dushkin became part of the Reactive Scientific Research Institute (RNII) when GIRD and the Gas Dynamics Laboratory (GDL) merged in 1933.
After the arrest of Valentin Glushko, Dushkin took over the development of rocket engines for the rocket-enhanced fighter plane RP-318.
He became the leader of the department of liquid propellant rocket engines the NII-3 beginning in January 1938.