123 Squadron

123 Squadron may refer to:


 * No. 123 Squadron RCAF, Canada
 * 123 Squadron (Israel)
 * 123 Squadron, Republic of Singapore Air Force, see list of Republic of Singapore Air Force squadrons


 * No. 123 Squadron RAF, United Kingdom
 * 123d Fighter Squadron, United States Air Force
 * 123rd Special Tactics Squadron, United States Air Force
 * VAH-123, United States Navy
 * VAW-123, United States Navy
 * VP-123, United States Navy
 * VMF-123, United States Marine Corps