84 Squadron or 84th Squadron may refer to:

No. 84 Squadron RAAF, a unit of the Royal Australian Air Force No. 84 Squadron RAF, a unit of the United Kingdom Royal Air Force 84th Flying Training Squadron, a unit of the United States Air Force VF-84 (Fighter Squadron 84), a unit of the United States Navy HSC-84 (Helicopter Sea Combat Squadron 84), a unit of the United States Navy

See also 84th Division (disambiguation) 84th Wing (disambiguation) 84th Regiment (disambiguation)