501 Squadron

501 Squadron or 501st Squadron may refer to:


 * No. 501 Squadron RAF, United Kingdom
 * 501 Squadron (Portugal)
 * 501 Squadron, Air Force Mobile Deployment Wing SAAF, South Africa
 * 501st Tactical Reconnaissance Squadron (JASDF), Japan
 * 501st Aero Squadron, Air Service, United States Army, see list of American aero squadrons
 * 501st Bombardment Squadron, United States Air Force
 * VMFAT-501, United States Marine Corps