Eathen is not regularly used as a baby boy name. It is not listed in the top 1000. Within the family of boy names directly linked to Eathen, Ethan was the most frequently used in 2015.
Baby names that sound like Eathen include Eathan, Eathon, Edon (Albanian), Edsen, Edson (English), Edsun, Edwan, Edwen, Eythan, Eyton, Eytton, Eytun, Aedan (Gaelic), Aeddan (Welsh), Aeden, Eddisen, Eddison (English), Eddisun, Eddisyn, and Eddysen.
† approx English pronunciation for Eathen: EH as in "ebb (EH.B)" ; DH as in "they (DH.EY)" ; AH as in "mud (M.AH.D)" ; N as in "knee (N.IY)"