A security garment hanger (2) having a central body portion (4) formed with a hook (14) and a garment clamping arm (24) which operates to clamp a garment to the body portion, the garment hanger includes a hook closure member (18) and a combination lock (40), the arrangement being such that the combination lock (40) needs to be opened before the hook closure member can be opened to permit removal of the hanger from a hanging rail (30) and wherein, opening of the hook closure member (18) also permits opening of the garment clamping arm (24) so that the garment can be removed from the hanger.