Search gender: all male female Hirotsumi Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: hirotsumi Katakana: ヒロツミ 0 Kanji: 広積 Meaning: 広Large. To have a large area or space. To spread out. Width of east and west. 積Pile up You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Hirotsumi Boy Name Meaning, Kanji Variations.