KCS Old Boys RFC
| Full name | King's College School Old Boys Rugby Football Club | |
|---|---|---|
| Union | Surrey RFU | |
| Founded | 1907 | |
| Location | Motspur Park, Kingston, London, England | |
| Ground(s) | Dornan Fields, Motspur Park | |
| League | Counties 1 Surrey/Sussex | |
| 2024–25 | 8th | |
| ||
| Official website | ||
| www | ||
King's College School Old Boys RFC is a rugby union club founded in 1907 for the alumni of King's College School, Wimbledon. These days the club is widely referred to as 'King's Rugby' which reflects the open nature of the club. The 1XV currently compete in Counties 1 Surrey/Sussex at level 7 of the RFU pyramid whilst the 2XV, U22s and veterans play in the Surrey Rugby reserve leagues.
The club's constituent bodies are L&SE RFU and Surrey RFU to which the club has provided numerous administrators including two Presidents – John Hamilton (1999–2001) and Darryl Druckman (2018–19).