5th King Edward's Own Probyn's Horse 1st (Risalpur) Cavalry Brigade 4th (Secunderabad) Cavalry Brigade Waziristan District Rawalpindi District Northern Command, India General Sir Alan Fleming Hartley, GCIE, KCSI, CB, DSO (24 October 1882 – 7 December 1954) was a British Indian Army officer during the Second World War.

[1] Educated at Charterhouse School and the Royal Military College, Sandhurst, Hartley was commissioned into the 1st Battalion, Durham Light Infantry as a second lieutenant on 8 January 1901.

[4] He was promoted to lieutenant on 10 May 1905 (seniority 5 June 1903),[5] transferred to the Indian Army and appointed to 11th King Edward's Own Lancers (Probyn's Horse) that year.

[8] He was promoted to captain on 8 January 1910,[9] to major in June 1917[10] and to acting lieutenant-colonel in 1917, commanding 1st Battalion, York and Lancaster Regiment at Salonika.

[1] In January 1932 he became commander of the 4th (Secunderabad) Cavalry Brigade[6] after which, in September 1933, he was made director of Military Operations and Intelligence at Army Headquarters, India in New Delhi.