Hideyo (written: or ) is a masculine Japanese given name. Notable people with the name include:
, Japanese actor , Japanese businessman , Japanese linguist , Japanese educator , Japanese political commentator , Japanese actor , Japanese politician , Japanese actress , Japanese baseball player , Japanese politician , Japanese astronomer , Japanese author , Japanese anthropologist , Japanese samurai , Japanese actor , Japanese businessman , Japanese singer , Japanese businessman , Japanese economic historian , Japanese bacteriologist , Japanese architect , Japanese politician , Japanese sound engineer , Japanese literary critic , Japanese golfer , Japanese philosopher , Japanese mycologist