VEHICLE SEAT

Provided is a vehicle seat that can be prevented from rearward tilting thereof at a rear collision and prevented from an increase in the weight of the seat. The vehicle seat includes a link mechanism (6) configured to adjust a height of a seat cushion (2). The link mechanism (6) includes: an attachment bracket (11) to be attached to a floor of a vehicle compartment; a plurality of link arms (12, 13) linking a cushion frame (7) and the attachment bracket (11) to each other in such a manner that the cushion frame (7) is shiftable between a first position and a second position located downward and vehicular rearward of the first position in parallel to the attachment bracket (11); and a protrusion (17) integrally formed with the attachment bracket (11) and protruding upward from an upper surface (11d) of the attachment bracket (11), and having a contact surface (18) that comes into contact with a bumping section (15) constituting a part of the cushion frame (7) thereon when a vehicle is involved in the rear collision.