COSMOS 731
| Launched | 20 May 1975 |
| Flight ended | 1 June 1975 |
| Status | Decayed |
| Launch site | Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome) |
| Owner | Commonwealth of Independent States (former USSR) |
| NORAD ID | 7810 |
| COSPAR ID | 1975-041A |
| Observing |
Launched alongside
SL-4 R/B SL-4 DEB SL-4 DEB COSMOS 731 DEB COSMOS 731 DEB COSMOS 731 DEB COSMOS 731 DEB