See also the related category turkish.
Onon is not widely used as a baby name for boys. It is not listed within the top 1000 names.
Baby names that sound like Onon include Oheane, Oheen, Oheene, Ohene (Akan), Ollin, Omah, Omee, Omey, Omie, Omye, Onni (Finnish), Onny, Ouen, Aagney, Aamin (Indian), Aanan, Ahsin, Aiman, Aimé (English and French), and Almyn.
† approx English pronunciation for Onon: AA as in "odd (AA.D)" ; N as in "knee (N.IY)"