Alystair \a-lys-tair, al(y)-stair\ as a boy's name is a variant of Alastair (Greek), and the meaning of Alystair is "man's defender".

The baby name Alystair sounds like Alysdair, Allystair and Alistair. Other similar baby names are Alasdair, Alyster, Allysdair, Allistair, Alistar, Alaistair, Alasteir, Alistir, Alistaire, Alisdair, Altair and Alltair.