43rd Brigade may refer to:
India 43rd Indian Brigade of the First World War 43rd Independent Gurkha Infantry Brigade of the Second World War
Netherlands 43rd Mechanized Brigade (Netherlands)
Spain 43rd Mixed Brigade
Ukraine 43rd Artillery Brigade (Ukraine) 43rd Mechanized Brigade (Ukraine)
United Kingdom 43rd Anti-Aircraft Brigade (United Kingdom) 43rd Infantry Brigade (United Kingdom) 43rd (Howitzer) Brigade, Royal Field Artillery
United States 43rd Military Police Brigade (United States) 43rd Sustainment Brigade
See also 43rd Division (disambiguation) 43rd Group (disambiguation) 43rd Regiment (disambiguation) 43rd Battalion (disambiguation) 43rd Squadron (disambiguation)