Search gender: all male female Mumon Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: mumon Katakana: ムモン 1 Kanji: 無門 Meaning: 無Not present. To not exist. A particle indicating cancellation. 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 > Mumon Name Meaning, Kanji Variations.