A cavalry division is a division-level military unit composed primarily of cavalry regiments. "Cavalry Division" may refer to:
unique units (sole cavalry divisions) in a particular army, including: the Cavalry Corps, Army of Northern Virginia, Confederate Army, during the US Civil War; the Cavalry Division (Greece), a unit of the Hellenic Army that saw action during World War II; the 1st Cavalry Division (Polish), between 1919 and 1939; a unit of the Phayap Army, part of the Royal Thai Army during World War II; the 1st Cavalry Division (United States), the Cavalry Division (United Kingdom), a British unit raised in World War I for service in Mesopotamia the Cavalry Group, a division-like Imperial Japanese Army unit comprising several cavalry brigades, and; a particular type of formation in various armies: Cavalry Divisions (Imperial Russia) Cavalry division (Soviet Union) TOE, German Cavalry Division, August 1914