Tim O'Shannessey

Timothy Leo O'Shannessey  (born 14 June 1972) is an Australian cyclist. He won the bronze medal in Men's team pursuit in the 1996 Summer Olympics.

At the 1994 Commonwealth Games in Victoria, Canada, O'Shannessey won a gold medal in the team pursuit and a bronze medal in the 1000–metre time trial.

Prior to the 2000 Sydney Olympics, O'Shannessey was suspended for two years after returning a test result of a high testosterone level.