311 Squadron

311 Squadron or 311th Squadron may refer to:


 * No. 311 Squadron RAF, a Czechoslovak-manned bomber squadron of the Royal Air Force in World War II
 * No. 311 Squadron RNLAF, a disbanded Royal Netherlands Air Force unit
 * 311th Aero Squadron, a United States Army Air Force unit
 * 311th Airlift Squadron, a United States Air Force unit
 * 311th Fighter Squadron, a United States Air Force unit
 * INAS 311, an Indian naval air squadron
 * VMA-311, a United States Marine Corps attack squadron