Search gender: all male female Nagatsuki Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: nagatsuki Katakana: ナガツキ 0 Kanji: 長月 Meaning: 長Long. Long distance or interval. A large range of time. Nurture. advantage. Relaxed. Eldest. Things that are at the top. Something that is useless. 月Moon. A satellite of the Earth. One of the celestial bodies visible in the sky. One month. A Monday. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Nagatsuki Name Meaning, Kanji Variations.