Stephen Brian Wooldridge (17 October 1977 – 14 August 2017) was an Australian racing cyclist, an Olympic and four-time world champion on the track. He was born in Sydney. He was an Australian Institute of Sport scholarship holder.

In 2005, Wooldridge was awarded a Medal of the Order of Australia for service to sport as a gold medallist at the 2004 Summer Olympics in Athens. He was inducted into the NSW Hall of Champions in 2015.

Wooldridge committed suicide on 14 August 2017 at the age of 39. The method was not made public.