Abstract: Disclosed is a collapsible receptacle bag support that is adapted to support a bag in an upright and open position, while permitting the bag to be removed from the support without upward lifting thereof. The support comprises an open upper support assembly connecting to a telescoping vertical support base. The upper assembly comprises a semicircular support ring having an open forward portion to allow a bag to be removed therethrough. In one embodiment, the upper assembly comprises a horizontal member connecting to intermediate angular members, which further connect to an outer member orthogonal to the horizontal member and aligned within the same plane. The members are pivotably attached using pin lock joints or are collectively hingeable downward, which allow the members to be collapsed along the vertical support base. In another embodiment, the upper assembly comprises a first and second arcuate member forming a semicircular support having an open front.