A headlight control apparatus and method controls an irradiation direction of a headlight. This apparatus uses a navigation-based swivel angle calculated based upon the shape of a road in a navigation-based control period, and a steering-based swivel angle calculated based upon a steering angle in a steering-based control period. When the control period changes from the navigation-based control period to the steering-based control period, this apparatus uses a value between the navigation-based swivel angle and the steering-based swivel angle as a present control swivel angle for controlling the irradiation direction of the headlight.