Field Marshal Sir Arthur Arnold Barrett GCB GCSI KCVO ADC (3 June 1857 – 20 October 1926) was a British officer of the Indian Army. He saw action at the Siege of the Sherpur Cantonment in December 1879 and at the Battle of Kandahar in September 1880 during the Second Anglo-Afghan War and went on to serve in the Hunza-Nagar Campaign in 1891. During World War I he was General Officer Commanding the Poona Division which successfully took Basra in Mesopotamia in November 1914 and then Al-Qurnah in Mesopotamia in December 1914. He spent the rest of the War commanding the Northern Army in which role he took part in operations against the Mahsuds in Spring 1917. He saw action again as the senior British officer on the ground during the Third Anglo-Afghan War in 1919 before retiring in May 1920.