Meaning A boy's name of Gaelic origin, it means "Son of the Handsome Man." Origin of MacAllen Gaelic , Irish +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen MacAllen Similar Names MacAilean Mac Ailean Cullen Mac Bheathain Mac Daraich Mac Ghille Dhuibh Quinn Gayner Kodi Eanrin Year by Year Popularity of MacAllen