| Sir Allen Johnson | |
| Birth Date: | 2 May 1829 |
| Allegiance: |  United Kingdom |
| Rank: | General |
| Battles: | Second Anglo-Burmese War Indian Mutiny |
| Awards: | Knight Commander of the Order of the Bath |
General Sir Allen Bayard Johnson (2 May 1829 – 7 February 1907) was a senior British Indian Army officer who went on to be Military Secretary to the India Office.
Johnson was commissioned into the 5th Bengal Native Infantry in 1846.[1]
He served in the Second Anglo-Burmese War in 1853 and took part in the fighting at Donabew and the capture of Pegu[1] and went on to serve with the Jaunpur Field Force during the repression of the Indian Mutiny being present at the Capture of Lucknow in 1857.[1]
He was appointed Military Secretary to the India Office in 1877.[2]
He was appointed KCB in 1889 and promoted to General in 1892.