Willi (Willy) Lehmann (15 March 1884, in Leipzig – 13 December 1942, in Berlin) was a police official and Soviet agent in Nazi Germany.Lehmann was a criminal inspector and SS-Hauptsturmführer (captain), alias Agent A-201/Breitenbach.
During World War II Lehmann was one of the most valuable sources for the NKVD in Germany.