Sigurd Alexander Adalbert Graf von der Groeben (born 5 October 1955) is a German former judoka. He competed at the 1984 Summer Olympics and the 1988 Summer Olympics.
Born into an old von der Groeben family, once part of German nobility, he is the son of Johann-Albrecht Graf von der Groeben (b. 1922) and his second wife, Ingeborg Baumeister (b. 1931).
In 1991, he married Ulrike Elfes. They have a son and a daughter, both actors: