Meaning A boy's name of Gaelic origin, it means "Variant of Cullen: Handsome; Good-looking Lad." Origin of Collan Gaelic , Irish Popular Middle Names Reilly Pronunciation 🔊 Listen Collan Similar Names Caomh Ealuvig Mac Adhaimh MacAladair Beagin Frannsaidh Gayner Gervin Muireach Raghallach Year by Year Popularity of Collan