19 Squadron

19 Squadron or 19th Squadron may refer to:
 * No. 19 Squadron RAF, a unit of the Royal Air Force
 * No. 19 Squadron RAAF, a current unit of the Royal Australian Air Force
 * No. 19 (Netherlands East Indies) Squadron RAAF, a unit of the Royal Australian Air Force and the Royal Netherlands East Indies Army Air Force in the 1940s
 * No. 19 Squadron SAAF, a unit of the South African Air Force
 * 19th Fighter Squadron (United States), a unit of the United States Air Force
 * 19th Special Operations Squadron (United States), a unit of the United States Air Force
 * 19th Airlift Squadron (United States), a unit of the United States Air Force
 * 19th Air Refueling Squadron, an inactive unit of the United States Air Force