Meaning A boy's name of Welsh origin, it means "Legendary father of Gweir." Origin of Cadellin Welsh +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Cadellin Similar Names Caradawg Custenhin Amlawdd Anarawd Anwas Dremidydd Rheged Abul Fazl Cnychwr Cubert Year by Year Popularity of Cadellin