33rd Cavalry may refer to:
Divisions 33rd Cavalry Division (Soviet Union) 33rd Waffen Cavalry Division of the SS (3rd Hungarian)
Regiments and battalions 33rd Cavalry Regiment (United States) 33rd Texas Cavalry Regiment, Confederate States Army 33rd Virginia Cavalry Battalion, Confederate States Army 33rd Queen Victoria's Own Light Cavalry
See also 33rd Division (disambiguation) 33rd Brigade (disambiguation) 33rd Regiment (disambiguation) 33rd (disambiguation)