Lieutenant-Colonel Hilary Hook (26 September 1917 – 14 September 1990) was a soldier in armies of the British Empire in India and later in Africa. Hook was born on 26 September 1917 and was educated at Canford School, Dorset, and the Royal Military College, Sandhurst, after which he was commissioned into the Unattached List of the Indian Army on 27 January 1938. From 1 April 1938 he was attached to the 1st battalion the Queen's Regiment. He was admitted to the Indian Army on 27 November 1939 and posted to the Royal Deccan Horse (9th Horse). He was promoted lieutenant on 27 April 1940 and captain on 27 January 1946.