3rd Cavalry, 3rd Cavalry Division, 3rd Cavalry Brigade or 3rd Cavalry Regiment may refer to:
Corps
editDivisions
editBrigades
edit- 3rd Cavalry Brigade (Australia)
- 3rd (Ambala) Cavalry Brigade, of the Indian Army in the First World War
- 3rd (Meerut) Cavalry Brigade, of the Indian Army in the Second World War
- 3rd Cavalry Brigade (Imperial Japanese Army)
- 3rd Cavalry Brigade (Poland)
- 3rd Cavalry Brigade (United Kingdom)
- 3rd Brigade Combat Team, 1st Cavalry Division (United States)
Regiments and battalions
edit- 3rd Cavalry Regiment (Australia)
- 3rd Cavalry (India)
- 3rd Bengal Cavalry, of the Indian Army
- 3rd Bengal Light Cavalry, of the East India Company
- 3rd Madras Cavalry, of the East India Company
- 3d Armored Cavalry Squadron (South Vietnam)
- 3rd Cavalry Regiment (United States)
- 3rd Arkansas Cavalry, a Confederate regiment of the American Civil War
- 3rd Arkansas Cavalry Regiment, a Confederate regiment of the American Civil War
- 3rd Arkansas Cavalry Regiment (Union), a Union regiment of the American Civil War
- 3rd Colorado Cavalry Regiment, a Union regiment of the American Civil War
- 3rd Regiment Indiana Cavalry, a Union regiment of the American Civil War
- 3rd Regiment Illinois Volunteer Cavalry, a Union regiment of the American Civil War
- 3rd Regiment Iowa Volunteer Cavalry, a Union regiment of the American Civil War
- 3rd Regiment Kentucky Volunteer Cavalry, a Union regiment of the American Civil War
- 3rd Michigan Volunteer Cavalry Regiment, a Union regiment of the American Civil War
- 3rd Ohio Cavalry, a Union regiment of the American Civil War
- 3rd Virginia Cavalry, a Confederate regiment of the American Civil War
- 3rd West Virginia Volunteer Cavalry Regiment, a Union regiment of the American Civil War
- 3rd Wisconsin Volunteer Cavalry Regiment, a Union regiment of the American Civil War