Hiromitsu (written: 博光, 博満, 宏光, 宏充, 弘光, 広光, 洋光 or 洋充) is a masculine Japanese given name. Notable people with the name include:

• , Japanese shamisen player

• Hiromitsu "Hiro-x" Aoki, J-pop musical artist

• , Japanese footballer

• , Japanese footballer

• , Japanese baseball player

• , Japanese martial artist

• , Japanese shogi player

• , Japanese sumo wrestler

• , Japanese idol, singer and actor

• , Japanese boxer and mixed martial artist

• , Japanese baseball player and manager

• , Japanese printmaker, often known simply as Hiromitsu

• , Japanese sumo wrestler