5 Squadron or 5th Squadron may refer to:

Aviation squadrons: No. 5 Squadron RAAF, a unit of the Royal Australian Air Force No. 5 Squadron RCAF, a unit of the Royal Canadian Air Force No. 5 Squadron RNZAF, a unit of the Royal New Zealand Air Force No. 5 Squadron PAF, a unit of the Pakistan Air Force No. 5 Squadron SLAF, a unit of the Sri Lanka Air Force 5 Squadron SAAF, a unit of the South African Air Force No. 5 Squadron RAF, a unit of the United Kingdom Royal Air Force 5th Special Operations Squadron, a unit of the United States Air Force 5th Space Operations Squadron, a unit of the United States Air Force 5th Space Launch Squadron, a unit of the United States Air Force

Naval squadrons: 5th Battle Squadron, a formation of the United Kingdom Royal Navy

Ground combat squadrons: 2/5th Commando Squadron (Australia), a unit of the Australian Army

See also Squadron No. 5, a 1939 Soviet film