John Horn (tennis)
| Country (sports) | United Kingdom | 
|---|---|
| Born | 6 November 1931 Plaistow, London, England  | 
| Died | 26 August 2001 (aged 69) Ireland  | 
| Turned pro | 1951(amateur tour) | 
| Retired | 1958 | 
| Singles | |
| Career record | 55–42 (6–7 per ATP) | 
| Career titles | 24 | 
| Grand Slam singles results | |
| French Open | 2R (1951) | 
| Wimbledon | 3R (1952) | 
| US Open | 1R (1950) | 
| Doubles | |
| Grand Slam doubles results | |
| Wimbledon | 2R (1952) | 
| Mixed doubles | |
| Grand Slam mixed doubles results | |
| Wimbledon | 3R (1952, 1953) | 
John Alfred Thomas Horn (6 November 1931 – 26 August 2001) was a British tennis player, and he won the Wimbledon Boys' singles Championship in 1950.