A retractable truck bed closure is disclosed herein. The retractable truck bed closure comprises a pair of frames that extend across a truck bed between sidewalls of the truck bed. The closure may be moved between a stored configuration and an extended configuration along the pair of frames to open, and close, a portion of the truck bed, respectively. The frames may be attachable to the truck, or may be integrated into portions of the truck, such as the sidewalls of the truck bed or the rear of the cab of the truck.