Eiryn \e(i)-ryn, eir-yn\ as a girl's name is a variant of Erin (Gaelic), and the meaning of Eiryn is "Ireland".

The baby name Eiryn sounds like Eryn, Eirynn, Eirin and Eiren. Other similar baby names are Beryn, Bryn, Karyn, Caryn, Coryn, Koryn, Daryn, Deryn, Eilin, Eir, Eira, Eireen, Eirian, Eirwen, Elyn, Ellyn, Taryn, Erynn, Eirinn, Eire, Airin, Erys, Faryn, Eirene, Eirena, Keryn, Loryn, Laryn, Maryn, Miran, Niran, Riayn and Teryn.