13 Squadron

13 Squadron or 13th Squadron may refer to:

Aviation squadrons

 * No. 13 Squadron RAAF, a unit of the Australian Royal Air Force
 * 13th Light Bomber Squadron a historical World War II unit of the Hellenic Air Force
 * No. XIII Squadron RAF, a unit of the United Kingdom Royal Air Force
 * 13th Bomb Squadron, a unit of the United States Air Force
 * 13th Fighter Squadron, a unit of the United States Air Force
 * 13th Reconnaissance Squadron, a unit of the United States Air Force
 * 13th Space Warning Squadron (United States), a unit of the United States Air Force
 * Marine Aviation Logistics Squadron 13, a unit of the United States Marine Corps

Ground combat squadrons

 * 13 Field Squadron, Royal Australian Engineers, a unit of the Australian Army