Counties 5 Kent
Counties 5 Kent 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 15 year hiatus, and after the RFU's Adult Competition Review in 2022 - and the decision 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.
2025–26
Departing were East Peckham & Paddock Wood, Sevenoaks III and Beckenham III, all promoted to Counties 4 Kent.Ashford II did not return for the new season.
| Team | Ground | Capacity | City/Area | Previous season |
| Askeans | Rectory Field | 6,000 | Blackheath, London | 6th |
| Beccehamian II | Sparrow's Den | West Wickham, London | 8th | |
| Blackheath III | Well Hall | Eltham, London | New entry | |
| Bromley III | Barnet Wood Road | Hayes, London | New entry | |
| Edenbridge | Coomb Field | Edenbridge, Kent | Re-entry | |
| Greenwich | Plumstead Common | Plumstead, London | 10th | |
| Lordswood | Lordswood Sports & Social Club | Chatham, Kent | 5th | |
| Medway III | Priestfields | Rochester, Kent | Relegated from Counties 4 Kent | |
| Old Alleynians III | The Common | Dulwich, London | 4th | |
| Old Elthamians II | Hospital Ground | Chislehurst, London | New entry | |
| Park House II | Barnet Wood Road | Hayes, London | 9th | |
| Sidcup III | Crescent Farm | Sidcup, London | 7th |
2024–25
Departing were Canterbury III, Bromley II and Old Colfeians II, all promoted to Counties 4 Kent.Joining were Lordswood, relegated from Counties 4 Kent and Sidcup III who finished 9th in Counties 4 Kent but elected to be relegated and in doing so gave Footscray a reprieve in the league above. New entries to the league were Beckenham III, Park House II, Old Alleynians III and East Peckham & Paddock Wood.
| Team | Ground | Capacity | City/Area | Previous season |
| Ashford II | Kinney's Field | Ashford, Kent | 6th | |
| Askeans | Rectory Field | 6,000 | Blackheath, London | 5th |
| Beccehamian II | Sparrow's Den | West Wickham, London | 7th | |
| Beckenham III | Balmoral Avenue | Beckenham, London | New entry | |
| East Peckham & Paddock Wood | Putlands Sports & Leisure Centre | Paddock Wood, Kent | New entry | |
| Greenwich | Plumstead Common | Plumstead, London | 8th | |
| Lordswood | Lordswood Sports & Social Club | Chatham, Kent | Relegated from Counties 4 Kent | |
| Old Alleynians III | The Common | Dulwich, London | New entry | |
| Park House II | Barnet Wood Road | Hayes, London | New entry | |
| Sevenoaks III | Knole Paddock | 1,000 | Sevenoaks, Kent | 4th |
| Sidcup III | Crescent Farm | Sidcup, London | Requested drop Counties 4 Kent |
2023–24
| Team | Ground | Capacity | City/Area | Previous season |
| Ashford II | Kinney's Field | Ashford, Kent | New entry | |
| Askeans | Rectory Field | 6,000 | Blackheath, London | Relegated from Counties 4 Kent |
| Beccehamian II | Sparrow's Den | West Wickham, London | Relegated from Counties 4 Kent | |
| Bromley II | Barnet Wood Road | Hayes, London | New entry | |
| Canterbury III | Marine Travel Ground | 1,500 | Canterbury, Kent | New entry |
| Greenwich | Plumstead Common | Plumstead, London | Relegated from Counties 4 Kent | |
| Old Colfeians II | Horn Park | Lee, London | New entry | |
| Sevenoaks III | Knole Paddock | 1,000 | Sevenoaks, Kent | New entry |