Scott Duncan (born 21 August 1994) is a British tennis player who specializes in doubles. He has a career high ATP doubles ranking of world No. 167, achieved on 26 August 2024.
He won his first ATP Challenger title in doubles at the 2023 Maspalomas Challenger, partnering Marcus Willis. Duncan and Willis also combined to win the doubles title at the 2024 Glasgow Challenger.
Duncan is a graduate of the University of Stirling.