A vehicle seat includes a seat back frame having a pair of side frames; a back panel main body constituted of resin and having a main wall and projections, the projections projecting away from the main wall to a seat width direction outer side; and back panel supports constituted of a resiliently deformable metal material and that each includes an attachment plate portion and a joining plate portion. The attachment plate portion is disposed along and is attached to a side wall portion of one of the pair of side frames, and the joining plate portion projects from an edge of the attachment plate portion toward the projection and is integrally joined to the projection.