Search gender: all male female ナガツナ Japanese Boy Names Variations. 1 names found. gender: all male female Name: nagatsuna Katakana: ナガツナ 2 Kanji: 長綱 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. 綱Rope You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ナガツナ Japanese Boy Names Variations.