Alisdair \a-lis-dair, al(i)-sdair\ as a boy's name is a variant of Alistair (Greek), and the meaning of Alisdair is "man's defender".

The baby name Alisdair sounds like Alasdair, Alysdair and Alaisdair. Other similar baby names are Alastair, Alystair, Allysdair, Allistair, Alistar, Alaistair, Alistir and Alistaire.