Hiromasa (written: 博正, 宏昌, 弘昌, 弘将, 浩正, 大将 or 太将) is a masculine Japanese given name. Notable people with the name include:
Hiromasa Arai (born 1952), Japanese baseball player , Japanese footballer Hiromasa Ezoe (1936–2013), Japanese industrialist Hiromasa Funabasama (born 1996), Japanese baseball player , Japanese swimmer , Japanese composer and music producer , Japanese footballer , Japanese noble and musician Hiromasa Nakano (born 1978), Japanese politician Hiromasa Ochiai (born 1994), Japanese field hockey player Hiromasa Ougikubo (born 1987), Japanese mixed martial artist , Japanese footballer , Japanese decathlete , Japanese footballer , Japanese footballer , Japanese animator and director , Japanese businessman