IV Corps

4 Corps, 4th Corps, Fourth Corps, or IV Corps may refer to:

France

 * 4th Army Corps (France)
 * IV Cavalry Corps (Grande Armée), a cavalry unit of the Imperial French Army during the Napoleonic Wars
 * IV Corps (Grande Armée), a unit of the Imperial French Army during the Napoleonic Wars

Germany

 * IV Cavalry Corps (German Empire), a unit of the Imperial German Army
 * IV Corps (German Empire), a unit of the Imperial German Army
 * IV Reserve Corps (German Empire), a unit of the Imperial German Army
 * IV Army Corps (Wehrmacht), a unit of the German Army in World War II

Soviet Union

 * 4th Airborne Corps (Soviet Union)
 * 4th Guards Army Corps
 * 4th Guards Cavalry Corps
 * 4th Cavalry Corps (Soviet Union)
 * 4th Guards Mechanized Corps
 * 4th Mechanized Corps (Soviet Union)
 * 4th Rifle Corps
 * 4th Guards Tank Corps

United States

 * IV Corps (United States)
 * IV Corps (Union Army)
 * Fourth Corps, Army of Northern Virginia
 * Fourth Army Corps (Spanish–American War)

Others

 * 4th Army Corps (Armenia)
 * 4th Army Corps (Azerbaijan)
 * IV Army Corps (Greece)
 * IV Corps (Hungary)
 * IV Corps (India)
 * IV Corps (North Korea)
 * IV Corps (Ottoman Empire)
 * IV Corps (Pakistan)
 * 4th Territorial Army Corps (Romania)
 * IV Corps (South Vietnam)
 * IV Army Corps (Spain)
 * IV Corps (United Kingdom)
 * 4th Corps (Vietnam People's Army)