2023–24 Cymru South
The 2023–24 Cymru South season was the fourth season of the second-tier Southern region football in Welsh football pyramid.
The winners were promoted to the 2024–25 Cymru Premier. The bottom three teams were relegated to either the 2024–25 Ardal SE or 2024–25 Ardal SW.
Teams
The league consisted of 16 clubs; 13 clubs remaining from the previous season, and 3 clubs promoted from the Ardal Southern Leagues.The champions of the Ardal SE and Ardal SW leagues from 2022–23, Caerau (Ely) and Abertillery Bluebirds respectively, were both promoted after achieving the necessary license. After defeating Risca United in the play-off final, Baglan Dragons were promoted, securing their second consecutive promotion. They replaced the promoted Cymru South team of Barry Town United, and relegated Cymru South teams of Swansea University and Ynyshir Albions.
As both teams relegated from the 2022–23 Cymru Premier were based in the North, no teams were relegated into the Cymru South. Instead, Trefelin BGC were given a reprieve from relegation.
Stadia and Locations
| Team | Home City | Home Ground | Capacity |
| Abergavenny Town | Abergavenny | Pen-y-Pound Stadium | 1,500 |
| Abertillery Bluebirds | Abertillery | Cwm Nant-Y-Groes | 1,000 |
| Afan Lido | Aberavon, Port Talbot | Marston's Stadium | 3,000 |
| Ammanford | Ammanford | Recreation Ground | 1,000 |
| Baglan Dragons | Baglan, Port Talbot | Evans Bevan Playing Field | 1,000 |
| Briton Ferry Llansawel | Briton Ferry | Old Road | 1,000 |
| Cambrian & Clydach Vale BGC | Clydach Vale | King George V New Field | 900 |
| Caerau (Ely) | Ely, Cardiff | Cwrt-yr-Ala Road | 1,000 |
| Carmarthen Town | Carmarthen | Richmond Park | 2,500 |
| Cwmbran Celtic | Cwmbran | Celtic Park | 350 |
| Goytre United | Goytre, Port Talbot | Glenhafod Park Stadium | 1,500 |
| Llanelli Town | Llanelli | Stebonheath Park | 3,700 |
| Llantwit Major F.C. | Llantwit Major | Windmill Ground | 1,000 |
| Pontardawe Town | Pontardawe | Parc Ynysderw | 1,000 |
| Taff's Well A.F.C. | Taff's Well | Rhiw'r Ddar | 2,930 |
| Trefelin BGC | Velindre, Port Talbot | Ynys Park | 1,000 |
League table
Results
Teams play each other twice on a home and away basis.Season statistics
Top scorers
| Rank | Player | Club | Goals |
| 1 |  |