Aleksey Konstantinovich Ryazanov (Russian: Алексей Константинович Рязанов; 27 February 1920 – 1 August 1992) was a Soviet flying ace during world War II.

Having graduated from trade school and the Voronezh aeroclub in 1938, he was employed in the construction of the Moscow metro and later as a mechanic at a factory before entering the military in January 1939.

In July he was transferred to the 28th Fighter Aviation Regiment, where he shot down two more enemy aircraft before he was badly injured in a dogfight on 7 August 1941.

As a squadron commander he participated in the battles for Bryansk, Stalingrad, Kuban, Oryol, Vitebsk, Krasnodar, and other areas.

The next month he graduated from the Lipetsk Higher Officer Flight Tactical School of the Air Force and became a squadron commander in the 50th Fighter Aviation Regiment.

In 1958 he graduated from the Military Academy of General Staff, and from January to April 1959 he was the deputy commander of the 100th Fighter Aviation Division.

In August 1960 he became the commander of the 19th Fighter Air Defense Division; he left the post in March 1962 and went on the work for the Office of Combat Aviation Training.