Sir John Wheeler Wheeler-Bennett (1902–1975), GCVO, CMG, OBE, FBA, FRSL was a conservative English historian of German and diplomatic history, and the official biographer of King George VI.

Wheeler-Bennett was born in Keston, Kent, the son of a wealthy importer on 13 October 1902. He was educated at a school in Westgate on Sea and Malvern College. He did not regard his youth as a happy one. In the 1920s, Wheeler-Bennett worked as an aide to General Sir Neil Malcolm in the Middle East and Berlin.

After leaving Malcom's employ, Wheeler-Bennett served in the publicity department of the League of Nations in 1923-1924 in Geneva. Afterwards, Wheeler-Bennett worked as the director of the Royal Institute of International Affairs' information department. In particular, Wheeler-Bennett worked as the editor of the Bulletin of International News between 1924-1932.

He lived in Germany between 1927–1934 and witnessed first-hand the collapse of the Weimar Republic and the rise of Nazi Germany. During his time living in Berlin, he enjoyed some success as a horse-breeder. During this period, he became an unofficial agent and advisor to London on international events.