Ethelyn \e-thel-yn, eth(e)-lyn\ as a girl's name is a variant of Ethel (Old English), and the meaning of Ethelyn is "noble".

The baby name Ethelyn sounds like Ethlyn and Ethelin. Other similar baby names are Emelyn, Emmelyn, Ethlynn, Ethlin, Ethelynne, Etheline, Ethelene, Etheleen, Ethelda, Ethelind and Evelyn.