| Tim Bethune | |
| Full Name: | John Timothy Bethune |
| Nationality: | Canadian |
| Birth Date: | 22 January 1962 |
| Birth Place: | London, England |
| Sport: | Track and field |
| Event: | 400 metres |
John Timothy "Tim" Bethune (born 22 January 1962) is a retired Canadian sprinter. At the 1982 Commonwealth Games, he placed 7th in the 400m and 4th as a member of Canada's 4 × 400 metres relay.[1] [2] He was a member of Canada's 4 × 400 metres relay at the 1984 Summer Olympics, which placed 8th.[3]
After he retired, Bethune admitted to using performance-enhancing drugs at the Dubin Inquiry in 1989. He was never found to have taken any performance-enhancing drugs while competing, and he was exonerated from any allegations that he competed while using any performance-enhancing drugs.[4]