Daniel "Danny" Clark OAM (born 30 August 1951 in George Town, Tasmania, Australia) is a retired track cyclist and road bicycle racer from Australia, who was a professional rider from 1974 to 1997. He won five world championships and at the 1972 Summer Olympics in Munich, West Germany, came second in the 1,000m time trial.

Clark was often fastest finishing rider in six-day races, especially as Patrick Sercu slowed after the mid-1970s. Clark and the British rider, Tony Doyle, won many six-day races. Clark enjoyed the party atmosphere of the races, and continued to work in them as a Derny pacer after retiring.