Fintan McCarthy (born 23 November 1996) is an Irish representative lightweight rower. He is an Irish national champion and a world and Olympic champion. He won the men's lightweight double sculls championship title with Paul O'Donovan at the 2019 World Rowing Championships and at the 2020 Tokyo Olympics where he set a new world's best time for that event. He also won a bronze medal in lightweight single sculls at the 2020 European Rowing Championships.