Vehicle Seat

A vehicle seat includes a seatback frame including a pair of side members extending vertically along either side thereof and providing a structural framework of a seatback, a plate member positioned behind the seatback frame and including an extension extending in an outboard direction from the side member located on an outboard side of the seatback frame, a mounting member connected to the outboard side member, and an airbag module positioned on a front side of the extension and connected to the outboard side member via the mounting member, a clearance being defined between the airbag module and the extension.