Meaning Owin is a boys name of Celtic origin, it means a young and fearless fighter. Origin of Owin Celtic , Irish Popular Middle Names Matthew, William Pronunciation 🔊 Listen Owin oo-win Similar Names Abhat Abhay Abhijun Abhayan Abhayaprada Abhaysimha Abheek Atrus Arturs Caoimhghin Year by Year Popularity of Owin