| Karin Kessler | |
| Birth Name: | Karin Rettmeyer |
| Birth Date: | 25 March 1939 |
| Birth Place: | Hamburg, Germany |
| Sport: | Track and field |
| Event: | 800 metres |
| Club: | Düsseldorfer SV 04 LG Alstertal / Garstedt Hamburg |
Karin Kessler (née Rettmeyer; born 25 March 1939) is a German female former track and field athlete who competed for West Germany in the 800 metres. She was the gold medallist in that event at the 1967 European Indoor Games, having been runner-up to Zsuzsa Szabó the previous year at the 1966 European Indoor Games.[1] Kessler also represented her country at the 1966 European Athletics Championships, reaching the semi-finals.[2] She set a personal best of 2:03.6 minutes in 1967,[3] which was a West German record for the Hamburg-born athlete.
Kessler was a five-time national champion individually, taking both indoor and outdoor 800 m titles in 1966 and 1967, as well as a short course cross country title in 1966.[4] [5] During her career she was a member of Düsseldorfer SV 04 and LG Alstertal / Garstedt Hamburg clubs.
| 1966 | European Indoor Games | Dortmund, West Germany | bgcolor=silver | 2nd | 800 m | 2:10.8 | |
| European Championships | Budapest, Hungary | 6th (semis) | 800 m | 2:08.0 | |||
| 1967 | European Indoor Games | Prague, Czechoslovakia | bgcolor=gold | 1st | 800 m | 2:08.2 |