A vehicle seat includes a bladder as an actuator a pump that is operated to supply air to the bladder a switch that is operated to operate the pump and a switching valve that is disposed in an air supply/discharge passage for the air for the bladder, the switching valve being configured to connect the air supply/discharge passage to a discharge port of the pump when the air is supplied to the bladder, and to connect the air supply/discharge passage to an exhaust port when the air is discharged from the bladder. The switching valve is incorporated in the switch, and is configured to receive an operating force applied to the switch, and to supply and discharge the air to and from the bladder in accordance with an operation of the switch.