The 110th Light Anti-Aircraft Regiment, Royal Artillery, (110th LAA Rgt) was an air defence unit of the British Army during World War II. Initially raised as an infantry battalion of the Dorsetshire Regiment in 1940, it transferred to the Royal Artillery in 1942. It served with 43rd (Wessex) Infantry Division in Normandy (Operation Overlord) and through the campaign in North West Europe until VE Day.