A vehicle seat apparatus includes: a vehicle seat; a swiveling drive unit that swivels the vehicle seat between the frontward-oriented position in which the vehicle seat faces the front of a vehicle and at least one of the outward-oriented position in which the vehicle seat is oriented in the outward direction of the vehicle and the inward-oriented position in which the vehicle seat is oriented in the inward direction of the vehicle; a traveling route information obtainment unit that obtains information on a traveling route along which the vehicle travels; and a control unit that controls the operation of the swiveling drive unit based on the information obtained by the traveling route information obtainment unit.