311 Squadron or 311th Squadron may refer to:
No. 311 Squadron RAF, a Czechoslovak-crewed 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
See also 311th Wing