Meaning A boy's name of Greek origin, it means "Variant of Alexander: Defender; protector of mankind Famous Bearer: Alexander the Great." Origin of Allistair Greek +-100%Zoom level changed to 1 Popular Middle Names Sterling Pronunciation 🔊 Listen Allistair Similar Names Alessandre Alesandro Alistir Alessandri Alisander Alissander Allissandre Allistir Alsandare Alandair Year by Year Popularity of Allistair