The Battle of An Lão was a battle that took place in the An Lão District of Bình Định Province, just over 300 miles north-east of Saigon between December 7–9, 1964. The battle was part of a larger 5th Military Region operation known as Campaign An Lão to capture An Lão valley, and use it as a corridor between their military bases in Quảng Ngãi Province and Bình Định Province.