Callum Priestley (born 13 February 1989) is a British former track and field athlete who specialised in sprint hurdling. He was banned after a positive sample for banned substances, namely clenbuterol, was found in a urine sample whilst training with the UK team in South Africa in January 2010. Despite evidence of tainted food, the ban was upheld. Subsequent to the ban, Priestley retired from competitive athletics. Disillusioned with the sport following his ban, he did not return to the sport after its conclusion.