J28

J28 may refer to:
 * J/28, an American sailboat
 * County Route J28 (California)
 * de Havilland J 28 Vampire, a British jet fighter in service with the Swedish Air Force
 * Jacks, Twos, and Eights, a card game
 * Pennsylvania Railroad class J28, an American steam locomotive
 * Square orthobicupola, a Johnson solid (J28)