The present invention serves to anchor appurtenances to wallboards without requiring a hollow void or cavity behind the wallboard and providing a secure stable attachment. In preferred embodiments, the wallboard anchor of the present invention has an arcuate shank or prong, having a distal point, that is inserted into the wallboard on an upward curved path, a wall engaging portion proximate the arcuate prong contacts and engages the outer surface of the wall. Preferably, the wall-engaging portion presents a vertical flat surface and the arcuate prong extends directly from the flat surface of the wall-engaging portion, initially perpendicularly from the, and then sweeps upwardly with a radius of curvature. The radius of curvature is preferably about equal to or less than the thickness of the wallboard to which the appurtenance is attached. The appurtenance with the wallboard anchor attached is attached by inserting the prongs into the wallboard horizontally and rotating the appurtenance downwardly toward the wall to seat the appurtenance against the wall. Removal is by rotating the lower portion upwardly away from the wall.