See also the related category turkish.
Onin is seldom used as a baby name for boys. It is not listed within the top 1000 names.
Baby names that sound like Onin include O'Shane, Ochan, Ochein, Ochen, Ochin, Ochon, Ochun, Ochyn, Ogyn, Ohan, Oisín (Irish), Osheen (Irish), Osman (English, Arabic, and Turkish), Osmarr, Osmen (Polish), Ossin (English), Oswen, Oswenn, Oswenne, and Oswin (English and German).
† approx English pronunciation for Onin: AH as in "mud (M.AH.D)" ; N as in "knee (N.IY)" ; IH as in "it (IH.T)"