Search gender: all male female Natsutatsu Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: natsutatsu Katakana: ナツタツ 0 Kanji: 夏樹 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. 樹Trees. General term for plants. To plant a tree. To set up. To stand firmly. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Natsutatsu Boy Name Meaning, Kanji Variations.