Evyn is not often used as a baby girl name. It is not in the top 1000 names. Within the family of girl names directly related to Evyn, Eve was the most commonly used in 2012.
Baby names that sound like Evyn include Evin (Spanish), Eban, Ebann, Ebanne, Ebban, Ebbann, Ebbanne, Ebbone, Ebun (African), Epyone, Evaine (French), Evan (English and Greek), Evanne (English), Evon (English and French), Avon (English), Ebanee, Ebanie, Ebany, Ebbony (English), and Eboni (English).
† approx English pronunciation for Evyn: EH as in "ebb (EH.B)" ; V as in "vow (V.AW)" ; IH as in "it (IH.T)" ; N as in "knee (N.IY)"