Gerhard Fieseler (15 April 1896 – 1 September 1987) was a German World War I flying ace, aerobatics champion, and aircraft designer and manufacturer.

In 1917 he qualified as a fighter pilot and was posted on 12 July to the Macedonian front, initially flying a Roland D.II with Jagdstaffel 25.

In 1926, he closed his print shop in Eschweiler and became a flight instructor with the Raab-Katzenstein aircraft company in Kassel and continued to hone his flying skills, becoming an accomplished stunt pilot.

Using money he had been saving from his aerobatics, he bought the Segelflugzeugbau Kassel sailplane factory and renamed it Fieseler Flugzeugbau.

[1] Gerhard Fieseler Werke produced aircraft for the German military throughout World War II.