Search gender: all male female Ninatsu Girl Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: ninatsu Katakana: ニナツ 0 Kanji: 新夏 Meaning: 新New. New things. To make new. 夏Summer. It is one of the four seasons. Big. Prosperous. The name of a dynasty or country in China. China's own name. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Ninatsu Girl Name Meaning, Kanji Variations.