43 Squadron

43 Squadron or 43rd Squadron may refer to:


 * No. 43 Squadron RAAF, a unit of the Royal Australian Air Force
 * No. 43 Squadron RAF, a unit of the United Kingdom Royal Air Force
 * 43d Fighter Squadron, a unit of the United States Air Force
 * 43d Flying Training Squadron, a unit of the United States Air Force
 * 43d Aeromedical Evacuation Squadron, a unit of the United States Air Force