4th Cavalry

• 1st Indian Cavalry Division
• 4th (Lucknow) Cavalry Brigade
• 4th (Meerut) Cavalry Brigade
• 4th (Secunderabad) Cavalry Brigade
• 4th Arkansas Cavalry Regiment
• 4th Arkansas Cavalry Regiment (Union)
• 4th Cavalry (India)
• 4th Cavalry Brigade (Australia)
• 4th Cavalry Brigade (Imperial Japanese Army)
• 4th Cavalry Brigade (Poland)
• 4th Cavalry Brigade (United Kingdom)
• 4th Cavalry Brigade (United States)
• 4th Cavalry Corps (Soviet Union)
• 4th Cavalry Division (Argentina)
• 4th Cavalry Division (German Empire)
• 4th Cavalry Division (India)
• 4th Cavalry Division (Soviet Union)
• 4th Cavalry Regiment (Australia)
• 4th Cavalry Regiment (United States)
• 4th Light Cavalry Division (France)
• 4th Michigan Volunteer Cavalry Regiment
• 4th Ohio Cavalry
• 4th Pennsylvania Cavalry
• 4th Regiment Iowa Volunteer Cavalry
• 4th Regiment Kentucky Volunteer Cavalry
• 4th Regiment South Carolina Cavalry
• 4th Virginia Cavalry
• IV Cavalry Corps (German Empire)
• IV Cavalry Corps (Grande Armée)