See also the related category unknown (obscure).
Aigen is not commonly used as a baby boy name. It is not listed within the top 1000.
Baby names that sound like Aigen include Aasim (African and Arabic), Achim (English and German), Achym (Polish), Acon, Agim (Albanian), Agmon (Hebrew), Agni, Agon (Albanian), Ahkeen (English and Nigerian), Ahsan (Arabic and Indian), Ahsen, Ahson, Ahsun, Ahsyn, Aikin, Ajune, Akan (Ga and Ochi), Akeam, Akeem (English), and Akeen (English and Nigerian).
† approx English pronunciation for Aigen: AY as in "side (S.AY.D)" ; JH as in "joy (JH.OY)" ; AH as in "mud (M.AH.D)" ; N as in "knee (N.IY)"