Thomas Geoffrey Reeves Clark (born 27 February 2001) is an English cricketer. He made his first-class debut on 23 September 2019, for Sussex in the 2019 County Championship. Before his first-class debut, Clark had played for the England under-19 cricket team. In October 2019, he was named in the England under-19 cricket team's squad for a 50-over tri-series in the Caribbean. In December 2019, he was named in England's squad for the 2020 Under-19 Cricket World Cup.