The conveyance seat includes a back frame and a belt retractor that is attached to the back frame, and that retracts a seat belt. The back frame includes a rear frame having a plate shape and a front frame that is assembled to a front surface of the rear frame. A first through-hole is formed in the rear frame, and a second through-hole is formed in the front frame at a position facing the first through-hole. The belt retractor is provided inside the first through-hole and the second through-hole, and is disposed at a position overlapping the rear frame and the front frame in a thickness direction of the back frame.