Meaning A boy's name of Welsh origin, it means "Legendary king of Ireland Origin of Mallolwch Welsh Popular Middle Names Pronunciation 🔊 Listen Mallolwch Similar Names Rhioganedd Bhoomindra Aedd Pwyll Garreth CaledvwIch Fflergant Gwilenhin Peissawg Phaneesh Year by Year Popularity of Mallolwch