VEHICLE SEAT

A vehicle seat comprises: left and right base frames (side portions 52, 53 of pipe frame 5) which extend in an upward-and-downward direction and constitute left and right portions of a seat back frame (2); a pressure-receiving member (10) disposed between the left and right base frames, and configured to move rearward upon receipt of a rearward load of a predetermined magnitude or greater from an occupant; a force-receiving member (bracket 7) disposed adjacent to a left or right outer side of one base frame (side portion 53), and configured to receive a load from outside in a lateral direction; and a load transmission part (lower portion 51 of pipe frame 5) disposed under the pressure-receiving member (10), connected to a lower end of the one base frame, and configured to transmit the load from the force-receiving member to a side laterally opposite to that on which the force-receiving member is provided. The force-receiving member is provided such that the lower end of the one base frame (53) is located within a width in the upward-and-downward direction of the force-receiving member.