This seat for vehicles is provided with: a seat cushion frame that forms the skeleton of the seat part of the seat; a cushion material disposed on the seat cushion frame; and a trim cover that covers the cushion material. The seat cushion frame has a cushion side frame that supports the lateral lower section of the seat part of the seat, and a trim wire that is fixed to the cushion side frame. The ends of the trim cover have a pocket part sewn in a pocket shape, and are configured such that the trim cover is fixed by inserting the trim wire into the pocket part.