| Carl Westergren | |
| Birth Date: | 13 October 1895 |
| Birth Place: | Malmö, Sweden |
| Death Place: | Malmö, Sweden |
| Weight: | + 87kg (192lb) |
| Sport: | Wrestling |
| Event: | Greco-Roman |
| Club: | IK Sparta |
| Show-Medals: | yes |
Carl "Calle" Oscar Westergren (13 October 1895 – 5 August 1958) was a Swedish wrestler who competed in the 1920, 1924, 1928, and 1932 Summer Olympics.[1] He won gold medals in Greco-Roman wrestling in 1920, 1924 and 1932; in 1924 he also finished sixth in freestyle wrestling.[2]
In Greco-Roman wrestling Westergren also won the world middleweight title in 1922, as well as three European titles in different weight classes: middleweight in 1925, light-heavyweight in 1930, and unlimited in 1931. He worked as a bus driver and had two elder brothers who also trained in wrestling. He later became a keen pigeon breeder.[3]