|Number of teams||16|
|Level on pyramid||2|
|Promotion to||Cymru Premier|
|Relegation to||Ardal Leagues|
|Domestic cup(s)||Welsh League Cup|
|Current champions||Swansea University F.C. |
|2020–21 Cymru South|
The Cymru South is a regional football league in Wales, covering the southern half of the country. It has semi-professional status clubs and together with the Cymru North, it forms the second tier of the Welsh football league system.
The first year of its operation was in 2019-20 with the Football Association of Wales owning and administering the tier 2 leagues for the first time. These changes followed on from a review of the Welsh Football Pyramid. Prior to 2019, the equivalent league was the Welsh Football League Division One, covering South Wales.