120th Brigade

120th Brigade may refer to:


 * 120th Brigade a 'bantam' infantry formation of the British Army 1915–18
 * 120th (Highland) Brigade an infantry formation of the British Army 1918
 * 120th Infantry Brigade a deception formation of the British Army in Sicily 1943–44
 * CXX Brigade Royal Artillery a British Army unit 1915–16
 * 120th Guards Mechanised Brigade of the Belarusian Ground Forces
 * 120th Infantry Brigade of the Egyptian Army 1973
 * 120th Field Artillery Brigade of the Egyptian Army
 * 120th Independent Mixed Brigade of the Japanese Army 1945
 * 120th Artillery Brigade of the Russian Ground Forces
 * 120th Anti-Aircraft Brigade of the Ukrainian Air Force
 * 120th Infantry Brigade of the US Army