Search gender: all male female ナナハ Japanese Boy Names Variations. 1 names found. gender: all male female Name: nanaha Katakana: ナナハ 0 Kanji: 七覇 Meaning: 七Seven. Seventh. Kanji character for the number 7 (seven). Many times. 覇Hegemony You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ナナハ Japanese Boy Names Variations.