A dispenser for plastic bags comprises a container having a dispensing opening through which bags can be withdrawn seriatim from the container. The bags are stacked within the container and each lead bag has a trailing end connected by a line of weakened resistance to the leading end of the trailing bag so that when a lead bag is pulled through the opening, cooperating shoulders on the trailing bag at the ends of reclosable fastener assembly brake the container at the opening and cause the bags to separate at the weakened line. The separated trailing bag is disposed at the opening for subsequent convenient withdrawal. The bags may be stacked by top end-connected pairs within the container. Pressure sensitive adhesive retains the container on a support against displacement when pulling bags from the container. The container may carry a replaceable closure flap for the dispensing opening.