A driver visibility detection system for a vehicle includes an indicator, an eye position obtainer, and a visible range calculator. The indicator indicates the driver to look at, through a windshield of the vehicle, a furthest ground position of a road on which the vehicle is traveling. The eye position obtainer recognizes an eye position of the driver when the driver looks at the furthest ground position. The visible range calculator calculates a visible range of the driver based on the eye position detected by the eye position obtainer.