A vehicle seat may include a monitor device that is movably disposed in a back board of a seat back, and a drive mechanism coupled to the base portion of the monitor device. The monitor device includes a base portion and a monitor portion. The drive mechanism is arranged and constructed to move the monitor portion through a slot formed in the back board between a retracted position in which the monitor portion is positioned in an interior of the back board and a use position in which the monitor portion is positioned in an exterior of the back board while a display surface of the monitor portion is maintained in substantially parallel to the back board. The monitor portion is connected to the base portion so as to be rotatable about an axis that is perpendicular to a moving direction of the monitor portion.