The South Wales Men's League is a summer rugby league competition for amateur teams in South Wales. The competition was formed in 2003 as the RLC Welsh Premier. Following the 2012 restructure of amateur rugby league in Great Britain, it was renamed the South Wales Premiership.
In 2003, the RLC expanded with the creation of the Welsh Premier division. This division had 6 teams in the inaugural season and marked the first all Welsh rugby league division.
The Welsh Premier division was split into two divisions East Wales and West Wales in 2006, though this decision was reversed for the following season.
The Welsh Conference Junior League began in 2009.
In 2010, due to the growth of the sport, a Championship division was formed which would function at one tier lower than the present Premier division. This Championship division featured teams from South Wales.[1]
The RLC Welsh Championship division was given a re-structure following four West Wales clubs not fulfilling fixtures. Amman Valley Rhinos, Dinefwr Sharks, Swansea/Llanelli Dragons and West Wales Wild Boars were omitted and replaced with newly formed Dyffryn Devils.
In 2012 the league became the South Wales Premiership with the lower Championship division being abolished. 2012 also saw the creation of the North Wales Conference. This was part of large restructure of the RLC as the Conference League South was created.
From 2023, the winners of the competition will play the winners of the North Wales Conference for a place in the Challenge Cup. Due to logistical issues 2023 Champions (in their debut season), South Wales Jets were allocated the Welsh League place in the Challenge Cup