See also the related category hebrew.
Eithin is uncommon as a baby boy name. It is not in the top 1000 names. Out of the family of boy names directly related to Eithin, Ethan was the most regularly used in 2018.
Baby names that sound like Eithin include Eadwin, Eadwinn, Eadwyn, Eataun, Eatawn, Eaton (English), Edan (English, Irish, and Scottish), Edem (Ewe), Edim, Edym, Eithyn, Etaun, Ethen (English), Ethon, Ethun, Etienne (French), Eton (English), Aedán (English), Idan (English and Hebrew), and Idumeo.
† approx English pronunciation for Eithin: IY as in "eat (IY.T)" ; DH as in "they (DH.EY)" ; IH as in "it (IH.T)" ; N as in "knee (N.IY)"