8th Brigade may refer to:
Argentina 8th Air Brigade (Argentina) VIII Mountain Brigade (Argentina)
Australia 8th Brigade (Australia)
Canada 8th Canadian Infantry Brigade
China 8th Armored Brigade (People's Republic of China) 8th Fighter Brigade
Greece 8th Motorized Infantry Brigade (Greece)
India 8th Indian Infantry Brigade in the Second World War 8th (Jullundur) Brigade in the First World War 8th (Lucknow) Cavalry Brigade in the First World War
Israel 8th Armored Brigade (Israel)
Lebanon 8th Infantry Brigade (Lebanon)
New Zealand 8th Brigade (New Zealand)
Republika Srpska 8th Motorized Brigade (Army of Republika Srpska)
Romania 8th Tactical Operational Missile Brigade (Romania)
Russia 8th Guards Mountain Motor Rifle Brigade
Spain 8th Mixed Brigade
Syria Eighth Brigade (Syria)
United Kingdom 8th Armoured Brigade (United Kingdom) 8th Cavalry Brigade (United Kingdom) 8th Cyclist Brigade 8th Engineer Brigade 8th Infantry Brigade (United Kingdom) 8th Mounted Brigade 8th Provisional Brigade 8th Reserve Brigade 8th Support Group VIII Brigade RAF Artillery units 8th County of London Brigade, Royal Field Artillery 8th (Howitzer) Brigade Royal Field Artillery VIII Brigade, Royal Horse Artillery
United States 8th Medical Brigade 8th Military Police Brigade (United States) 8th Reserve Officers' Training Corps Brigade
See also 8th Division (disambiguation) 8th Regiment (disambiguation)