229th may refer to:
229th Brigade, United Kingdom 1st Battalion, 229th Aviation Regiment, an Attack Helicopter Battalion operating AH-64 Apaches attack and OH-58 Kiowa scout helicopters 229th (South Saskatchewan) Battalion, CEF, a unit in the Canadian Expeditionary Force during the First World War 2nd Battalion, 229th Aviation Regiment, the only United States Army Attack Helicopter unit in history to have captured enemy troops
See also 229 (number) 229, the year 229 (CCXXIX) of the Julian calendar 229 BC