Eirinn \e(i)-ri-nn\ as a girl's name is a variant of Erin (Gaelic), and the meaning of Eirinn is "Ireland".
The baby name Eirinn sounds like Eirian, Erinn, Eirynn and Eirin. Other similar baby names are Brinn, Corinn, Eilin, Eireen, Eirwen, Erynn, Erinne, Erinna, Erina, Eiryn, Airin, Eirene, Eirena, Eiren, Airina, Marinn, Tirion, Tirien and Tirian.