55th Brigade

55th Brigade or 55th Infantry Brigade may refer to:


 * 55th Indian Brigade of the British Indian Army in the First World War
 * 55th Indian Infantry Brigade of the British Indian Army in the Second World War
 * 55th Infantry Brigade (United Kingdom)
 * 55th Heavy Brigade Combat Team of the United States Army
 * 55th Sustainment Brigade (United States)
 * 55th Airborne Brigade
 * 55th Separate Motor Rifle Brigade - mountaine troop of the Russian Army