Search gender: all male female ヒロイト Japanese Boy Names Variations. 1 names found. gender: all male female Name: hiroito Katakana: ヒロイト 0 Kanji: 紘糸 Meaning: 紘Crown String 糸Thread. A metaphor for a thin, long thing. A stringed instrument. A unit of number (1/10,000 of one). Very few. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ヒロイト Japanese Boy Names Variations.