
| Enw y Cadeirydd | Cyfnod y Swydd | 
| * T Gwyn Llewellyn | 1987 – 1988 | 
| * D Hywel Davies | 1988 – 1989 | 
| * M Rowena Fowler | 1989 – 1990 | 
| * Peter W Cowell | 1990 – 1991 | 
| * D J Ryan Bartlett | 1991 – 1992 | 
| * E Audrey Jones | 1992 – 1993 | 
| * S Joyce Jenkins | 1993 – 1994 | 
| * William H Jenkins | 1994 – 1995 | 
| * Peter W Cowell | 1995 – 1996 | 
| * D Hywel Davies | 1996 – 1997 | 
| * June Gunter | 1997 – 1998 | 
| * Vincent T W Davies | 1998 – 1999 | 
| * Delyth Richards | 1999 – 2000 | 
| * D Arnallt James | 2000 – 2001 | 
| * C M Annette Price | 2001 – 2002 | 
| * Carwyn James | 2002 – 2003 | 
| * Peter Cowell | 2003 – 2004 | 
| * Anne Sizmur | 2004 – 2005 | 
| * Loreen Lewis | 2005 – 2006 | 
| * Menna Roberts | 2006 – 2007 | 
| * Carwyn James | 2007 – 2008 | 
| * Annette Price | 2008 – 2009 | 
| * Betsan Jones | 2009 – 2010 | 
| * Anne Sizmur | 2010 – 2011 | 
| * Carwyn James | 2011 – 2012 | 
| * Anne Sizmur | 2012 – 2013 | 
| * Loreen Lewis | 2013 – 2014 | 
| Anne Sizmur | 2014 – 2015 | 
| Loreen Lewis | 2015 – 2016 | 
| Carwyn James | 2016 – 2017 | 
| Annette Price | 2017 – 2018 | 
| Loreen Lewis | 2018 – 2019 | 
| Loreen Lewis | 2019 – Tachwedd 2020 ** | 
| Betsan Jones | Tachwedd 2020 – Mai 2021 ** | 
| Jose Picouto | 2021 – 2022 | 
| Dave Stacey | 2022 – 2023 | 
* Mae’r enwau uchod wedi’u harysgrifio ar Gadwyn y Cadeirydd.
** Cyfnod y Swydd wedi’i ymestyn neu ei fyrhau oherwydd y Pandemig Coronafeirws a’r Cloeon/Cyfyngiadau a ddechreuodd ym mis Mawrth 2020.

