- Dwyvan and Dwyvach
- In the Celtic creation myth the man and woman who built Nefyed Nav Nevion, the Welsh Ark, in which with an assortment of animals, they escaped from the deluge caused by the Addanc, a monster who dwelt by Llyon Llion, the Lake of the Waves. This legend is pre-Celtic but has suffered from Christian additions.
Who’s Who in non-classical mythology . John Keegan. 2014.