Hirai may refer to:
Places Hirai Edogawa, Tokyo, Japan Hirai Station (Tokyo)
People with the surname , Japanese model and actor , Japanese ice dancer , Japanese animator, character designer, and manga artist , Japanese volleyball player , Japanese professional wrestler (NJPW) Kazumasa Hirai (disambiguation), multiple people , CEO Sony Corporation , Japanese R&B and pop singer , Japanese tennis player , Japanese composer , Japanese actress and voice actress , Japanese martial artist , K-pop Idol from Twice , Japanese footballer , Japanese professional wrestler , Japanese railroad engineer , Japanese TV actress and announcer , Japanese politician , Japanese footballer , Japanese politician , Japanese author, better known by the pen name , Japanese photographer , Japanese civil engineer and corporate executive , Japanese swimmer