The United States Army's 3rd Cavalry Division was created from the perceived need for additional cavalry units in the interwar period.

The 3rd Cavalry Division was largely a "paper" formation existing from 1927 to 1940. Its units were never assembled in a single location. The 3rd Cavalry Division was located in the United States and never deployed overseas. The division's shoulder sleeeve insignia was approved on 17 February 1928.

Organization (1927–1933)

• Headquarters & Headquarters Troop
• 6th Cavalry Regiment (assigned 1927–39)
• 10th Cavalry Regiment (assigned 1927–40)
• 11th Cavalry Regiment (assigned 1927–33; reassigned to 1st Cavalry Division 1933)

Organization (1933–1940)

• Headquarters & Headquarters Troop
• 6th Cavalry Regiment (converted to a non-divisional mechanized unit 1939)
• 10th Cavalry Regiment (reassigned to 2nd Cavalry Division
  2nd Cavalry Division (United States)
  -Heraldry:SHOULDER SLEEVE INSIGNIA*Description: On a yellow Norman shield with a green border, a blue chevron below two eight-pointed blue stars.*Blazon: Or, a chevron azure, in chief 2 mullets of eight points of the second, a bordure vert....
  
   1940)
• 9th Cavalry Regiment (reassigned to 2nd Cavalry Division
  2nd Cavalry Division (United States)
  -Heraldry:SHOULDER SLEEVE INSIGNIA*Description: On a yellow Norman shield with a green border, a blue chevron below two eight-pointed blue stars.*Blazon: Or, a chevron azure, in chief 2 mullets of eight points of the second, a bordure vert....
  
   1939)

See also

• Formations of the United States Army
  Formations of the United States Army
  This is a list of historical formations of the United States Army.Units still in existence are in bold.For specific eras:* Formations of the United States Army during the Mexican Revolution* Formations of the United States Army during World War I...
  
  
• Coats of arms of U.S. Armor and Cavalry Regiments
  Coats of arms of U.S. Armor and Cavalry Regiments
  This page has been split as follows:* Coats of arms of U.S. Armor Regiments* Coats of arms of U.S. Cavalry Regiments-See also:* commons:Field Army insignia of the United States Army* Corps insignia of the United States Army...