Major-General Herman James Shelley Landon, CB, CMG, (23 August 1859 – 16 October 1948), was a British Army officer. During the Boer War he commanded a battalion, and was promoted in the interwar period to take command of a brigade in the British Expeditionary Force. He commanded the brigade during the early fighting on the Western Front in the First World War, and succeeded to the command of 1st Infantry Division when his commanding officer was killed at the First Battle of Ypres; he later commanded four more New Army divisions during the war.