Search gender: all male female Omon Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: omon Katakana: オウモン 0 Kanji: 桜門 Meaning: 桜Cherry blossom. A small deciduous tree of the rose family. The language of this flower is "spiritual beauty" and "a good education". 門Gate. A doorway. A clan. A place to receive teachings. A companion who shares a teacher. A major classification of things. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Omon Boy Name Meaning, Kanji Variations.