Search gender: all male female マレヒロ Japanese Boy Names Variations. 1 names found. gender: all male female Name: marehiro Katakana: マレヒロ 0 Kanji: 希宙 Meaning: 希Rare. To be few in number, precious. To desire. To seek. To wish for. Faint. Sparse. thin. 宙Space. The sky. Heaven. A place away from the earth. In the air. Memorizing. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > マレヒロ Japanese Boy Names Variations.