81 Squadron or 81st Squadron may refer to:
No. 81 Squadron IAF, India No. 81 Squadron PAF, Pakistan No. 81 Squadron RAF, United Kingdom 81st Aero Squadron, Air Service, United States Army 81st Fighter Squadron, United States Air Force VFA-81 (Fighter Attack Squadron 81), United States Navy
See also 81st Division (disambiguation) 81st Brigade (disambiguation) 81st Regiment (disambiguation)