A vehicle seat includes a support leg connected to a floor to be pivotable about a first axis extending in a horizontal direction; a seat cushion connected to the support leg to be pivotable about a second axis which is parallel to the first axis; a first coupling device provided on the support leg and configured to be detachably coupled with a first coupling part provided on the floor; and a second coupling device provided on the seat cushion and configured to be detachably coupled with a second coupling part provided on the floor. The seat cushion is movable between a stowed position in which the seat cushion is in a lowest position, a first use position in which the first coupling device is coupled with the first coupling part, and a second use position in which the second coupling device is coupled with the second coupling part.