Abstract: A tailgate gap cover for attachment to pickup trucks to cover the gap formed between the tailgate and the truck bed. The tailgate gap cover includes a plurality of adjacently disposed interconnected panels, the arrangement of all the panels thereof comprising: a truck bed panel disposed for removable attachment to the truck bed of a pickup truck, adjacent the tailgate gap; a tailgate panel disposed for removable attachment to the tailgate of a pickup truck, adjacent the tailgate gap; and a folding panel operatively disposed between the truck bed panel and the tailgate panel, the folding panel being pivotally connected to the truck bed panel and the tailgate panel, wherein the interconnected panels substantially cover a tailgate gap when a tailgate gap cover is mounted to a pickup truck.