Vehicle seat

A vehicle seat comprising:

• a seat pad that defines a seat outer shape;
• a backboard having a plate shape, the backboard being disposed on a back side of the seat pad;
• and
• a seat cover that covers the seat pad and the backboard, wherein:
• the seat cover includes a pair of covering pieces adjacent to each other on the backboard-side, and a slide fastener that connects the pair of covering pieces;
• when the slide fastener is closed with use of a slider, an end portion of the slide fastener is projected from an edge end of the seat cover in a state where the slider is disposed in the end portion of the slide fastener;
• the backboard is provided with an insertion portion;
• and
• when the end portion of the closed slide fastener is disposed on a reverse side of the seat cover, the end portion of the slide fastener and the slider are inserted in and locked to the insertion portion.