Meaning A boy's name of Welsh origin, it means "Legendary son of GwIyon." Origin of Culvanawd Welsh Popular Middle Names Pronunciation 🔊 Listen Culvanawd Similar Names Cadwallon Cadwgawn Cadwr Caerau CaledvwIch Casnar Casswallawn Caw Clud Clywd Year by Year Popularity of Culvanawd