CS Rugby 1863
| Full name | Civil Service Stags 1863 | |
|---|---|---|
| Union | Middlesex RFU | |
| Nickname(s) | The Stags | |
| Founded | 1863 | |
| Location | Chiswick, Hounslow, London, England | |
| Ground(s) | King's House Sports Ground | |
| Chairman | David Chaytor | |
| President | Mike Lee | |
| Coach(es) | Oliver Bryant | |
| League(s) | Regional 1 South Central | |
| 2023–24 | 6th | |
| ||
| Official website | ||
| www | ||
Civil Service Rugby, mostly known as CS Rugby 1863, currently CS STAGS 1863, is an English rugby union team based in Chiswick, Greater London. The club runs three senior sides and the first XV currently play in Regional 1 South Central following their promotion from London 1 South as champions at the end of the 2017–18 season.