Search gender: all male female Hiromasu Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: hiromasu Katakana: ヒロマス 0 Kanji: 広益 Meaning: 広Large. To have a large area or space. To spread out. Width of east and west. 益Increase. Something that is beneficial to people and the world. Something that is useful. Profit. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Hiromasu Name Meaning, Kanji Variations.