| Hartmut Flöckner | |
| Birth Date: | 1953 6, df=y |
| Birth Place: | Berlin, Germany |
| Height: | 1.83m (06feet) |
| Weight: | 70kg (150lb) |
| Sport: | Swimming |
| Club: | Berliner TSC |
| Show-Medals: | yes |
Hartmut Flöckner (born 27 June 1953) is a retired German swimmer. He competed at the 1972 and 1976 Summer Olympics in six events in total, and won a silver medal in the 4 × 100 m medley relay in 1972. His best individual results were seventh place in the 100 m and 200 m butterfly in 1972.
Between 1970 and 1974 he won one silver and four bronze medals in the 200 m individual butterfly and 4 × 100 m relays at the world and European championships.