502nd

502nd may refer to:


 * 502nd heavy tank battalion (Germany), a German World War II independent armoured battalion equipped with heavy tanks
 * 502nd Infantry Regiment (United States) (502nd PIR), a regiment of the 101st Airborne Division of the United States Army
 * 502nd SS Jäger Battalion, a Nazi Germany special forces unit from 1943 to 1944
 * 502nd Tactical Control Group, a United States Air Force unit that fought in the Korean War