A corner protector, e.g. for a sheet of glass, has a pair of generally triangular side walls connected by a pair of substantially perpendicular bridging walls. The internal faces of the bridging walls are substantially flat and are separated by a recess. Internal channels are provided along the junction between the side walls and the bridging walls. The margins of the side walls which extend between the outer ends of the bridging walls are curved such that they are mutually offset from each other for most of their length. At least one of the side walls contains a through-aperture for receiving an adhesive pad which adheres to the protected article in use to hold the corner protector in place. A finger notch provides access to an edge of the adhesive pad to facilitate peeling in order to remove the corner protector.