| 1926 | Neath |
| 1927 | Cardiff |
| 1928 | Llanelly |
| 1929 | Gowerton |
| 1930 | Llanelly |
| 1931 | Llanelly |
| 1932 | Swansea |
| 1933 | Gowerton |
| 1934 | Pontardawe |
| 1935 | Llanelly |
| 1936 | Neath |
| 1937 | Morewoods |
| 1938 | Elba |
| 1939 | Briton Ferry Steel |
| 1940 | Elba |
| 1941-1945 | No competition |
| 1946 | Briton Ferry Steel |
| 1947 | Briton Ferry Steel |
| 1948 | Dafen |
| 1949 | Gorseinon |
| 1950 | Dafen |
| 1951 | Pontarddulais |
| 1952 | Elba |
| 1953 | Pontarddulais |
| 1954 | Clydach |
| 1955 | Neath |
| 1956 | Neath |
| 1957 | Swansea |
| 1958 | Maesteg Celtic |
| 1959 | Pontarddulais |
| 1960 | Neath |
| 1961 | Maesteg |
| 1962 | Maesteg Celtic |
| 1963 | Maesteg Celtic |
| 1964 | Maesteg Celtic |
| 1965 | Maesteg Celtic |
| 1966 | Neath |
| 1967 | Llanelly |
| 1968 | Swansea |
| 1969 | Neath |
| 1970 | Maesteg Celtic |
| 1971 | Dafen |
| 1972 | Dafen |
| 1973 | Neath |
| 1974 | Dafen |
| 1975 | Gorseinon |
| 1976 | Gowerton |
| 1977 | Pontarddulais |
| 1978 | Maesteg Celtic |
| 1979 | Ynysygerwn |
| 1980 | Pontarddulais |
| 1981 | Ynysygerwn |
| 1982 | Gowerton |
| 1983 | Ammanford |
| 1984 | Swansea |
| 1985 | Pontarddulais |
| 1986 | Ammanford |
| 1987 | Swansea |
| 1988 | Ynysygerwn |
| 1989 | Swansea |
| 1990 | Neath |
| 1991 | Neath |
| 1992 | Neath |
| 1993 | Swansea |
| 1994 | Ynysygerwn |
| 1995 | Swansea |
| 1996 | Swansea |
| 1997 | Ynysygerwn |
| 1998 | Ynysygerwn |
| 1999 | Pontarddulais |
| 2000 | Ynysygerwn |
| 2001 | Swansea |
| 2002 | Swansea |
| 2003 | Swansea |
| 2004 | Briton Ferry Steel |
| 2005 | Briton Ferry Steel |
| 2006 | Neath |
| 2007 | Pontarddulais |
| 2008 | Ammanford |
| 2009 | Ammanford |
| 2010 | Mumbles |
| 2011 | Dafen |
| 2012 | Swansea |
| 2013 | Neath |
| 2014 | Ammanford |
| 2015 | Clydach |
| 2016 | Tata Steel |
| 2017 | Llanelly |
| 2018 | Gorseinon |
| 2019 | Cowbridge |
| 2020 | No competition |
| 2021 | Llanelli |
| 2022 | Dafen Welfare |
Peter Hartland
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