| Sport | Rugby Union |
|---|---|
| Instituted | 1987 |
| Most titles | Midland Bank (2 titles) |
Counties 3 Kent (formerly Kent 3) is an English Rugby Union league that is the lowest RFU league for clubs in south-east London and Kent. Promoted teams go up to Counties 4 Kent and relegation is to the Kent RFU merit leagues.
Dwindling numbers of teams meant that Kent 3 folded at the end of the 2007–08 season, with all sides automatically promoted to what was then Kent 2. However, following a 15yr hiatus, and after the RFU's Adult Competition Review in 2022 - and the decsion by Kent Rugby to allow reserve teams to participate in county leagues - from season 2023-24 it was resurrected and adopted its current name Counties 5 Kent.