A driving support apparatus mounted on a vehicle, performing a driving support control includes: other vehicle determining unit that determines whether the other vehicle moves towards a present lane where the own vehicle runs from an adjacent lane; an acquiring unit that acquires a tip end lateral position of other vehicle in the present lane side, among lateral positions of the other vehicle in a direction perpendicular to a travelling direction of the own vehicle; an object determination unit that determines, based on a movement or a predicted movement of the tip end lateral position into the present lane from the adjacent lane, the other vehicle to be an object of a driving support control, and determining, based on no-movement of the tip end lateral position, the other vehicle not to be an object of a driving support control.