Welsh Chess Championship
The modern Welsh Chess Championship was inaugurated in 1955.
The champion earned a place in the British Championship.
| Year | Men's Champion | Women's Champion |
| 1955 | Arthur S Griffiths | Beryl E F Kenyon |
| 1956 | Briant Peter Bourne | Beryl E F Kenyon |
| 1957 | M E Wise & Grahame F Barnard | Nancy Budzinski née Scott |
| 1958 | Brian V Douthwaite | N Budzinski & Maria MacLean |
| 1959 | Donald A Curtis | not held |
| 1960 | Pat J Bennett | not held |
| 1961 | Pat J Bennett, John Denley Mills | Maria MacLean |
| 1962 | Arthur O Jones, W D Newcombe | not held |
| 1963 | George P Moore | Shirley Mann |
| 1964 | Graham H Chesters | Zbyzska Southall |
| 1965 | David Ian Wishart Reynolds | Shirley Mills & C Beryl Williams |
| 1966 | David John Sully | Zbyzska Southall |
| 1967 | Colin Gilbert | Zbyzska Southall |
| 1968 | Arthur Howard Williams, Mikhail Gavrilovik | Zbyzska Southall |
| 1969 | Mikhail Gavrilovik | Zbiska Southall & Hazel Brunker |
| 1970 | Mikhail Gavrilovik, Graham H Chesters | Hazel Bunker |
| 1971 | Arthur Howard Williams | Zbiska Southall |
| 1972 | Arthur Howard Williams | Hazel Brunker |
| 1973 | John Trevelyan, Stuart James Hutchings, George Botterill, Moss McCarthy | Hazel Brunker |
| 1974 | Arthur Howard Williams | Mary Elizabeth Davies |
| 1975 | Arthur Howard Williams | Beryl Jarman |
| 1976 | John Grantley Cooper, Emmanuel M Rayner | Jane Garwell |
| 1977 | Arthur Howard Williams, John Grantley Cooper | Deborah Mary Evans |
| 1978 | John Grantley Cooper, Arthur Howard Williams | Jane Garwell |
| 1979 | John Trevelyan, David John Sully | Deborah Evans |
| 1980 | Arthur Howard Williams | Jane Garwell |
| 1981 | Arthur Howard Williams | Jane Garwell, Diana James |
| 1982 | Arthur Howard Williams | Jane Anson & Hazel Brunker |
| 1983 | Stephen Collin James, Iolo Ceredig Jones, Paul A Lamford, Arthur Howard Williams | Jane Garwell |
| 1984 | John Grantley Cooper | Lynda Powell |
| 1985 | John Grantley Cooper | Hazel Brunker |
| 1986 | Arthur Howard Williams | Lynda Powell |
| 1987 | Arthur Howard Williams, Moss McCarthy | Diana Adams |
| 1988 | Arthur Howard Williams, Paul A Lamford | Lynda Powell |
| 1989 | Paul A Lamford | Hazel Brunker |
| 1990 | Charles F Morris, P O'Neill, Stuart James Hutchings | Hazel Brunker |
| 1991 | Arthur Howard Williams, Andrew R Jones | Deborah Cooper, Jane Garwell |
| 1992 | John Grantley Cooper | Jane Richmond |
| 1993 | John Grantley Cooper, Arthur Howard Williams | Jane Richmond |
| 1994 | John Grantley Cooper, Arthur Howard Williams | Jane Richmond |
| 1995 | John Grantley Cooper | Jane Richmond |
| 1996 | John Grantley Cooper | Jane Richmond |
| 1997 | David H Cummings | Amanda John |
| 1998 | David H Cummings, Andrew Dyce, Sven Zeidler, Gareth Morris | Julie Wilson |
| 1999 | James Cobb | Beryl Hughes |
| 2000 | Leighton Williams | Deborah Evans-Quek |
| 2001 | James Cobb | no contest |
| 2002 | Richard S Jones | Abigail Cast |
| 2003 | Richard S Jones | Deborah Evans-Quek |
| 2004 | Suan Evans-Quek | Jane Richmond |
| 2005 | Leighton Williams | Olivia Smith |
| 2006 | John Trevelyan | Abigail Cast |
| 2007 | James Cobb | Abigail Cast |
| 2008 | Leighton Williams, James Cobb | Suzy Blackburn |
| 2009 | Ioan Rees, Richard S Jones | Olivia Smith, Suzy Blackburn |
| 2010 | Richard S Jones | Olivia Smith |
| 2011 | Arthur Howard Williams, Sven Zeidler | Olivia Smith |
| 2012 | Tim Kett, Richard S Jones | Suzy Blackburn |
| 2013 | Richard S Jones | Syringa Camp, Stephanie Du Toit |
| 2014 | Tim Kett | Olivia Smith |
| 2015 | James Cobb | Lynda Roberts |
| 2016 | Tim Kett | Julie Van Kemenade |
| 2017 | Allan J Pleasants | Imogen Camp, Shayanna Sivarajasingam, Venetia Sivarajasingam, |
| 2018 | Gerry Heap, David Jameson and Sven Zeidler | Venetia Sivarajasingam |
| 2019 | Tim Kett | Imogen A L Camp |