Allisoun \a-lli-soun\ as a boy's name (also used as girl's name Allisoun), is a variant of Alison (Old English), and the meaning of Allisoun is "son of the noble".

The baby name Allisoun sounds like Allison, Allyson, Allson and Ellison. Other similar baby names are Addison, Adison, Allon, Allin, Alanson, Albion, Alisson, Aloisius, Allstonn, Allston, Allton, Ellyson, Ellson and Elison.