Current season or competition: 2019–20 London 3 Eastern Counties | |
| Sport | Rugby union |
|---|---|
| Instituted | 2017 |
| Number of teams | 11 |
| Country |  England |
| Holders | West Norfolk (1st title) (2019–20) (promoted to London 2 North East) |
| Most titles | Stowmarket, West Norfolk, Wymondham (1 title) |
| Website | englandrugby.com |
London 3 Eastern Counties is an English rugby union league that is at the eighth level of the English rugby union system and is available to club sides based in Cambridgeshire, Norfolk and Suffolk (Eastern Counties). Promoted teams move up to London 2 North East with league champions going up automatically and the runners up playing a playoff against the runners up from London 3 Essex, while demoted teams usually drop down to Eastern Counties 1, with new teams also coming up from this league, although only 1st XV sides are allowed in London 3 Eastern Counties. Each year all clubs in the division also take part in the RFU Senior Vase - a level 8 national competition.
The division was created for the 2017-18 as part of an RFU reorganization of the London & South East regional league. Originally there had been a London 3 North East league which had involved teams from the Eastern Counties as well as Essex and parts of north-east London. Due to the distances involved for teams travelling potentially from London to Norfolk and vice versa, at the end of the 2016–17 season, this league was discontinued. Teams in Cambridgeshire, Norfolk and Suffolk who had played in London 3 North East were transferred into the new look London 3 Eastern Counties 3 along with additional promoted teams from Eastern Counties 1, while the Essex and London sides went into another new division called London 3 Essex.