Jack Anthony Han-Aitken (Korean: 한세용, Han Se-yong; born 23 September 1995) is a British and South Korean racing driver who competes in the IMSA SportsCar Championship for Cadillac Whelen and in the FIA World Endurance Championship for Cadillac Hertz Team Jota. Aitken made one Formula One start under the British flag in 2020.

Born in London to a Scottish father and South Korean mother, Aitken won the Formula Renault Eurocup in 2015 and was a Renault junior in the GP3 Series and Formula 2. While serving as Williams' reserve driver in Formula One, Aitken filled in for George Russell at the 2020 Sakhir Grand Prix. In sports car racing, Aitken raced in the DTM for Emil Frey Racing, and made his GTP debut in 2023 for Cadillac.