| Henry James Buchanan | |
| Birth Date: | 1830 |
| Death Date: | 7 October 1903 |
| Rank: | Lieutenant-General |
| Commands: | Eastern District. |
| Battles: | Crimean War |
| Awards: | Companion of the Order of the Bath |
Lieutenant-General Henry James Buchanan (1830 – 7 October 1903) was a British Army officer who became General Officer Commanding Eastern District.
Buchanan was commissioned as an ensign in the 47th Regiment of Foot on 14 June 1850. He fought at the Battle of Alma in September 1854 and the Battle of Inkerman in November 1854 as well as the Siege of Sevastopol during the Crimean War.[1] He also served with the Jowaki expedition of 1877–1878.[1] He went on to be Commander of the 3rd Brigade at Aldershot in January 1887 and General Officer Commanding Eastern District in January 1889.[2] He was also Colonel of the Norfolk Regiment from 1898 to his death.[1]