Meaning A boy's name of Gaelic origin, it means "Son of Alasdair." Origin of MacAladair Gaelic , Irish Popular Middle Names Pronunciation 🔊 Listen MacAladair Similar Names MacAllister Mac Alasdair MacAlister Alistair Kodi Mungan Mac Ailean Mac Daraich Mac Ghille Easpuig MacAdam Year by Year Popularity of MacAladair