Klaus-Dietrich Flade (born 23 August 1952) is a German pilot and former German Aerospace Center astronaut who visited the Mir space station in 1992 aboard the Soyuz TM-14 mission, returning to Earth a week later aboard Soyuz TM-13.

Born in Büdesheim, West Germany, he joined the German Air Force after school.

In October 1990, he was selected as part of the German astronaut team for the Euromir '92 flight.

After two years of training, he flew as a research cosmonaut on Soyuz TM-14 in March 1992.

This biographical article related to the German Air Force is a stub.