Eileen \e(i)-leen\ as a girl's name is pronounced eye-LEEN. From Norman French Aveline. Variant of Evelyn; derived from the Gaelic Eibhl?(see Eibhlin). Also a form of Helen. Fashion designer Eileen Fisher; actress Eileen Brennan.
Eileen has 26 variant forms: Aileen, Ailene, Alene, Aline, Ayleen, Eila, Eilah, Eilean, Eileene, Eilena, Eilene, Eilin, Eilleen, Eiley, Eily, Ileana, Ileanna, Ileen, Ileene, Ilene, Iliana, Ilianna, Leana, Lena, Lianna and Lina.