Abstract: A versatile folding lawn bag holder usable on a grassy lawn to hold open a bag in an open horizontal position and which is also attachable to a rack rail on a wall in a utility room or garage to hold a plurality of bags in an open vertical position. The bag holder has a base platform with a front ramp for sweeping debris up into a lawn bag, and a pair of inwardly arched and hinged foldable arms holding the mouth of the lawn bag open. A pair of pins on each arcuate arm help to retain the lawn bag on the arcuate arms. A pair of blind bores on the bottom surface of the base platform which cooperate with knobs on the rack rail to hang the holder on a wall.