Allyn \a-ll-yn\ as a girl's name (also used as boy's name Allyn), is a variant of Alaine (Old German) and Alana (Old German, Hawaiian), and the meaning of Allyn is "precious; precious; awakening".

The baby name Allyn sounds like Ailyn, Allyna, Allyne, Allynn and Ellyn. Other similar baby names are Ally, Allys and Arlyn.