Felix Gill (born 1 June 2002) is a British tennis player. He has a career-high ATP singles ranking of world No. 211 achieved on 21 September 2026 and a career high doubles ranking of No. 459 achieved on 13 June 2022.
He reached the third round of qualifying at the 2026 French Open but lost to Kyrian Jacquet. At the ATP Challenger, the 2026 Birmingham Open where he received a main draw wildcard, he defeated Ugo Blanchet to reach the round of 16, recording his first win on grass court at this level.
Gill was also granted a wildcard into the main draw of the 2026 Ilkley Open, and of the 2026 Nottingham Open, where he defeated fifth seed Hugo Gaston and reached again the round of 16.
Gill received a wildcard for the 2026 Wimbledon Championships making his Grand Slam debut. On his ATP debut, he entered the main draw of the 2026 Eastbourne Open as a lucky loser, receiving a first-round bye, directly into the second round, after the top seed Taylor Fritz late withdrawal.