| HD 82943 c | |
| Discoverer: | Mayor, Udry et al. |
| Discovery Site: |  France |
| Discovered: | 2001 |
| Apsis: | astron |
| Semimajor: | 0.746AU |
| Eccentricity: | 0.359 |
| Period: | 219 d |
| Time Periastron: | 1189.3 |
| Arg Peri: | 127 |
| Semi-Amplitude: | 41.7 ± 0.91 |
HD 82943 c is an extrasolar planet approximately 89 light-years away in the constellation of Hydra. The planet was announced in 2001 to be orbiting the yellow dwarf star HD 82943. The planet is the innermost planet of two.