Abstract: A removable headrest for chairs includes a pocket which is formed to fit over the upper portion of the back of a chair, such as a folding lawn chair or the like. The headrest may be adapted to other types of chairs as well. The pocket portion is preferably formed of a resilient plastic material and includes a relatively thick back panel for structural strength, and a relatively thin front panel in order to conform comfortably to the upper back of a person seated in the chair. The pocket portion may have a single headrest support arm channel formed in the central back portion, or may alternatively include opposite support arm channels formed along each edge of the pocket. Greater versatility may be provided by including a central channel and both side channels in the same seat back pocket portion. The channels may be continuous or may be formed in several segments.