Hirasawa is a Japanese surname. Notable people with the surname include:Gaku Hirasawa , Japanese alpine skier Katsuei Hirasawa , Japanese politician Maia Hirasawa, Swedish singer-songwriter Nako Hirasawa, Japanese Paralympic archer Masanori Hirasawa , Japanese astronomer Mitsuhide Hirasawa , Japanese professional wrestler Rinako Hirasawa , Japanese pornographic actress Sadamichi Hirasawa , Japanese tempera painter Shusaku Hirasawa , Japanese footballer Susumu Hirasawa , Japanese progressive-electronic musician and composer