Meaning A boy's name of Welsh origin, it means "Legendary son of Llyr Origin of Granwen Welsh +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Granwen Similar Names Powell Gilvaethwy Gleis Goreu Gruddyeu Gusg Gwallawg Gweir Gwydre Gwyngad Year by Year Popularity of Granwen