| Birth Date: | 29 October 1896 |
| Birth Place: | Stockholm, Sweden |
| Death Date: | 3 December 1976 (aged 80) |
| Death Place: | Uppsala, Sweden |
| Sport: | Athletics |
| Event: | Pole vault |
| Club: | Gefle IF |
| Pb: | 3.90 m (1922) |
| Show-Medals: | yes |
Erik Gunnar Ernfrid Rydberg (29 October 1896 – 3 December 1976) was a Swedish pole vaulter.[1] He competed in the 1920 Summer Olympics and finished fifth. Rydberg was the national champion in 1920, 1922 and 1924, and set a national record at 3.90 m in 1922.