103rd Brigade may refer to:
Belarus 103rd Separate Guards Airborne Brigade
Germany 103rd Panzer Brigade
Russia 103rd Rocket Brigade
Soviet Union 103rd Rocket Brigade 103rd Separate Guards Airborne Brigade
Spain (Republican Spain)
Ukraine 103rd Territorial Defense Brigade, a unit of the Ukrainian Territorial Defense Forces
United Kingdom 103rd (Tyneside Irish) Brigade, British Army infantry formation during World War I 103rd Brigade, Royal Field Artillery, British Army unit during World War I 103rd (Suffolk) Brigade, Royal Field Artillery, British Army unit after World War I 103rd Anti-Aircraft Brigade (United Kingdom), British Army formation during World War II
United States 103rd Field Artillery Brigade
See also 103rd Division (disambiguation) 103rd Regiment (disambiguation)