Regional 2 South East
Regional 2 South East, previously known as London 1 South, is an English level 6 rugby union regional league for rugby clubs in London and the south-east of England including sides from East Sussex, south Essex, south Greater London, Hampshire, Kent, Surrey and West Sussex. When this division began in 1987 it was known as London 2 South, changing to London 1 South ahead of the 2009–10 season. It was the feeder league for London & South East Premier into which the champion team each season is promoted. The second-placed team entered a play-off against the runner-up of London 1 North. Three teams were relegated into either London 2 South East and London 2 South West depending on their location.
| Current season or competition: 2023–24 Regional 2 South East | |
| Sport | Rugby union |
|---|---|
| Instituted | 1987 (as London 2 South) |
| Number of teams | 12 |
| Country | England |
| Holders | Horsham (2022–23) (promoted to Regional 1 South Central) |
| Most titles | Basingstoke, Canterbury, Gravesend, Haywards Heath, Sutton & Epsom, Wimbledon, Camberley (2 titles) |
| Website | englandrugby.com |
The current champions are Horsham and are promoted to Regional 1 South Central.