Ethelin \e-the-lin\ as a girl's name is a variant of Ethel (Old English), and the meaning of Ethelin is "noble".

The baby name Ethelin sounds like Ethlin, Ethelyn, Etheline and Ethelind. Other similar baby names are Cathelin, Ethlyn, Ethelinda, Ethelene, Etheleen, Ethelda, Ethylind, Ethelinde, Athelina and Evelin.