Logan Hunter Sargeant (born December 31, 2000) is an American racing driver, who is set to compete in the 2025 European Le Mans Series for IDEC Sport. Sargeant most recently competed in Formula One from 2023 to 2024.

Born and raised in Fort Lauderdale, Florida, Sargeant is the nephew of billionaire business magnate Harry Sargeant III and the younger brother of stock car driver Dalton. After a successful karting career—culminating in his victory at the junior direct-drive Karting World Championship in 2015—Sargeant graduated to junior formulae. Achieving top three finishes in the F4 UAE and the F4 British Championships, Sargeant progressed to FIA Formula 3 in 2019, finishing third the following season with Prema. He then moved to FIA Formula 2 in 2022, finishing fourth in his full debut season with Carlin.

A member of the Williams Driver Academy since 2021, Sargeant signed for Williams in 2023, making his Formula One debut at the Bahrain Grand Prix and scoring his only championship point at the United States Grand Prix. Despite retaining his seat for his 2024 campaign, Sargeant was replaced by Franco Colapinto after the Dutch Grand Prix following several high-profile accidents. Following his departure, Sargeant moved into sportscar racing, joining IDEC Sport in the European Le Mans Series.