Yohei Sugai (Japanese: 菅井 洋平, Hepburn: Sugai Yōhei, born 30 August 1985) is a retired Japanese long jumper. He competed at the 2015 World Championships in Beijing without qualifying for the final. His personal best in the event is 8.18 metres (+1.3 m/s) set in Walnut in 2015.