| Birth Place: | Nätra, Sweden |
| Height: | 1.77m (05.81feet) |
| Weight: | 68kg (150lb) |
| Sport: | Athletics |
| Event: | Steeplechase, 10,000 m |
| Club: | IF Vingarna Hofors AIF Kils AIK |
| Pb: | 3000 mS – 8:39.8 (1961) |
| Show-Medals: | yes |
Lage Herbert Tedenby (born 21 May 1937) is a retired Swedish long-distance runner. He competed in the steeplechase at the 1960 Summer Olympics, but failed to reach the final. Tedenby won the steeplechase at the 1961 Nordic Championships. Later he had a serious traffic accident, but recovered and won the national 10,000 m title in 1967.