Meaning Aonghas is a boys name of Celtic origin, it means 'one choice'. It is a variant of the name Angus. Origin of Aonghas Celtic , Irish Popular Middle Names Pronunciation 🔊 Listen Aonghas an-gus Similar Names Atrus Arturs Artie Artturi Ferghus Fearghus Atre Mynogan Niallan Arzhur Year by Year Popularity of Aonghas