Name Gwion Gender Masculine Usage Welsh Mythology, Welsh Pronounced Pron. ?, GWEE-on Other Forms FormsGwiawn Edit Status Status1. basic formatting Meaning & History Possibly related to the Welsh element gwyn meaning "fair, blessed". This was the original name of Taliesin, a legendary bard, before he was cast into the "cauldron of knowledge", after which he became Taliesin, bard and seer.