Abstract: The present invention is an adjustable holder for driveway markers. The holder is comprised of a clamping unit sized to fit over a typical curb. The clamping unit may take the form of a u-shaped bracket, l-shaped bracket, or c-shaped cuff. The clamping unit may include a thumbscrew that passes through it in order to adjust the clamping unit to the size of the particular curb to which it is applied. The driveway marker may be attached directly to the clamping unit, or may be inserted into a hollow piece which extends from the clamping unit.