See also the related category sacred (holy).
Oni is unusual as a baby name for boys. It is not listed in the top 1000 names.
Baby names that sound like Oni include Ohin, Ohine, Omen (Hebrew), Omi, Omni (English), Omy, Onan, Onann, Owaene, Owain (English, Gaelic, and Welsh), Owaine, Owane, Owayn, Owayne, Owein, Oweine, Owenn, Owenne, Owin, and Owine.
† English pronunciation for Oni: OW as in "oak (OW.K)" ; N as in "knee (N.IY)" ; IY as in "eat (IY.T)"