Meaning A boy's name of Gaelic origin, it means "Warrior." Origin of SIuaghan Gaelic , Irish Popular Middle Names Pronunciation 🔊 Listen SIuaghan Similar Names Findley Stiabhan Batair Cathaoirmore Mac an Bharain Peadar Bealantin Gille Mungan Raibeart Year by Year Popularity of SIuaghan