Huronia West OPP say the driver was killed when a vehicle struck a utility pole and rolled Sunday night in Clearview Township.
Officers were called around 9:30 to Concession Road 6 North, north of Sideroad 30 & 31 Nottawasaga.
The victim's name has not been released. There was no one else in the vehicle.
Anyone who may have witnessed the collision or has dashcam footage and has not yet spoken with police is asked to call Huronia West OPP at 1-888-310-1122.
The road closed for several hours while crews replaced the hydro pole. It has been reopened.