Search gender: all male female Natsunao Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: natsunao Katakana: ナツナオ 0 Kanji: 夏直 Meaning: 夏Summer. It is one of the four seasons. Big. Prosperous. The name of a dynasty or country in China. China's own name. 直Correct. Honest. Straight-hearted. fix. Direct. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Natsunao Name Meaning, Kanji Variations.