(Adlar, İsimler) Eileen is a female first name. It is the English form of the Irish name Eibhlin, which is in turn a form of Aveline. While Aveline is a pet form of Ava, its meaning is uncertain, but possibly means "desired"
() Anglicized form of Irish Eibhlín, Eilín or Aibhilín, all cognates of Evelyn. Sometimes also used for the Irish name Éibhleann, possibly from óiph "radiance, beauty".