A universal support hook includes an elongated pin having a plurality of juxtaposed hangers rotatably mounted thereon. Each hanger includes a C-shaped gripping member with a hinge barrel at an upper end thereof. The hinge barrel includes a central, transverse bore that receives the pin to allow the hanger to freely rotate within a 360-degree range. When any desired number of hangers are raised to a vertical position, their C-shaped gripping members can be secured to a tubular or thin support structure, such as a passenger-seat tray, a closet rod, a chair frame or a shopping-cart handle. The remaining hangers freely hang from the pin to provide a hook for suspending handbags, jewelry items, garments and other similar personal items from the support structure.