To provide a storage structure for a headrest capable of stably storing the headrest without increasing the number of parts.

The stay members 14b of a headrest main body 14a are removably inserted into the insertion hole sections 13b of a seat back section 13 in this storage structure for the headrest 14. A headrest storage hole 25 into which at least one of the stay members 14b can be inserted and a headrest storage recess section 21a are provided on a seat back striker 21 fixing the seat back section 13 on the side section of a rear seat 11. In an inserted state of the headrest stay members 14b, the headrest main body 14a abuts on a cabin inside wall section 18b and the front wall section 16a of a rear wheel wheelhouse section 16 on two faces.