The present disclosure provides a footrest including: a bracket that has a plurality of wings and that is coupled to a back of a seat, the plurality of wings spaced apart at a predetermined distance from each other and extending rearward; an actuating unit to rotate a rotary shaft hingedly coupled to the plurality of wings; and a panel that is coupled to the rotary shaft and is folded or unfolded toward or away from a seatback when the rotary shaft is rotated.