| Birth Date: | 13 September 1882[1] |
| Birth Place: | Dronninglund, Denmark[2] |
| Death Date: | 4 April 1942 (aged 59) |
| Death Place: | Frederiksberg, Denmark |
| Sport: | Greco-Roman wrestling |
| Club: | AK Thor, Copenhagen |
| Show-Medals: | yes |
Carl Marinus Jensen (13 September 1882 - 4 April 1942) was a Danish sport wrestler who competed in the 1908 Summer Olympics. He won a bronze medal in the Greco-Roman light heavyweight class. He also participated in the Greco-Roman super heavyweight competition but was eliminated in the first round.[3]