A seat cover including a reference portion on a design surface of the seat cover, and a linear stitch portion disposed in parallel with the reference portion and including a first stitch portion including a first thread material and a second stitch portion including a second thread material and disposed away from the reference portion than the first stitch portion, wherein the first thread material includes a plurality of seams which intermittently appear on the design surface side, and the second thread material includes a plurality of seams which intermittently appear on the design surface side, and wherein, when viewed in a direction perpendicular to an extending direction of the stitch portion, at least a portion of a seam of one of the first thread material and the second thread material is disposed between adjacent seams of another of the first thread material and the second thread material.