17th Cavalry may refer to:
Regiments 17th Cavalry Regiment (British Indian Army) 17th Cavalry Regiment (United States) 17th Horse (Poona Horse) 17th Lancers 17th/21st Lancers XVII Corps Cavalry Regiment
American Civil War regiments Union Army 17th Illinois Cavalry Regiment 17th Kentucky Cavalry Regiment 17th Pennsylvania Cavalry Regiment
Confederate Army 11th/17th Arkansas Cavalry 17th Virginia Cavalry Battalion 17th Virginia Cavalry Regiment
See also 17th Regiment (disambiguation) 17th (disambiguation)