Artistiaid yr Oriel Artistiaid yr Arddangosfa Gyfredol Artists sydd â'u gwaith yn cael ei arddangos yn Oriel Rhiannon ar hyn o bryd: Sam Davis Jackie Henshall Sarah Jones Holl Artistiaid yr Oriel David Alderslade Maureen Alderslade Charlotte Baxter Natalie Chapman Sam Cooper Paul Croft Sam Davis John Dickinson Julia Elliott Stuart Evans Louise Freeman Jackie Henshall Philip Huckin Kim James-Williams Sarah Jones Vernon Jones Wyn Melville Jones Mike Laxton Flora McLachlan Ian Phillips Andrew Richards Ali Scott Catherine Smedley Gini Wade