Meaning A boy's name of Gaelic origin, it means "Valiant." Origin of Raghallach Gaelic , Irish Popular Middle Names Pronunciation 🔊 Listen Raghallach Similar Names Rabhartach Baethan Iyapo Beagin Frannsaidh Gayner Gervin Muireach Steaphan Dallan Year by Year Popularity of Raghallach