Aly \a-ly\ as a boy's name is a variant of Alistair (Greek), and the meaning of Aly is "man's defender".

The baby name Aly sounds like Al, Ali and Ely. Other similar baby names are Alyn, Alvy, Alby, Alfy, Alf, Algy, Ary, Arly, Bly and Sly.