Headrest

A headrest with a head contact part, which can be moved between a front and a rear position by an adjustment device, wherein the adjustment device includes at least one link. The link forms at least one joint with the retaining device and at least one joint with the head contact part. The adjustment device includes an adjustment housing that at least partially covers the at least one link. The adjustment housing is motion-connected to the retaining device in such a way that it can follow a movement of the links.