Hieronim \hi(e)-ro-nim\ as a boy's name is a variant of Hieronymos (Greek) and Jerome (Greek), and the meaning of Hieronim is "sacred name".

The baby name Hieronim sounds like Hieronimo, Heronimo, Hieronimos and Hieronimus. Other similar baby names are Geronimo, Jeronimo, Hieronymus, Hierome and Hirom.