Jacob Fearnley
| Country (sports) | Great Britain | 
|---|---|
| Born | Worcester | 
| Height | 1.83 m (6 ft 0 in) | 
| College | TCU | 
| Coach | Toby Smith, Juan Martín | 
| Prize money | US $ 937,053 | 
| Singles | |
| Career record | 13–13 (at ATP Tour level, Grand Slam level, and in Davis Cup) | 
| Career titles | 0 | 
| Highest ranking | No. 49 (9 June 2025) | 
| Current ranking | No. 60 (16 June 2025) | 
| Grand Slam singles results | |
| Australian Open | 3R (2025) | 
| French Open | 3R (2025) | 
| Wimbledon | 2R (2024) | 
| US Open | Q1 (2024) | 
| Doubles | |
| Career record | 2–3 (at ATP Tour level, Grand Slam level, and in Davis Cup) | 
| Career titles | 0 | 
| Highest ranking | No. 238 (20 May 2024) | 
| Current ranking | No. 379 (16 June 2025) | 
| Grand Slam doubles results | |
| French Open | 2R (2025) | 
| Wimbledon | 2R (2023) | 
| Last updated on: 16 June 2025. | |
Jacob Fearnley (born 15 July 2001) is a British professional tennis player. He has a career-high ATP singles ranking of world No. 49, achieved on 9 June 2025 and a doubles ranking of No. 238, achieved on 20 May 2024. He is the current British No. 2 in singles.