Name
- Indian Expeditionary Force, 19141
- Intelligence Department, East Africa Protectorate, 1910s1
- Inter-Services Topographical Department, 1940-19461
- Jackowski, Vincent, soldier, fl 19241
- Jackson, Lambert Cameron, army officer, 1875-19531
- Jackson, Lionel Warren de Vere, army officer, 1876-19321
- Jacob, Arthur Augustus, civil engineer, 1831-18951
- Jamaluddin, surveyor, fl 18991
- James, Henry, Knight, Director-General Ordnance Survey, surveyor, 1803-18771
- James, J O N, surveyor, fl 1860-18701
- Jenner, Arthur Charles William, colonial administrator, 1864-19001
- Jessel, George, Master of the Rolls1
- Jiejin, N.V., customs official, fl 19111
- Jones, John, Captain, 1801-18751
- Joseph, Charles, surveyor, fl 1841-18571
- Joslin, Francis John, army officer, 1875-19151
- Jullien1
- Junta das Missoes Geográficas e de Investigaçoes de Cartografia, Mozambique, 1936-1956?1
- Kadir, Sheik Abdul, military cartographer, fl 19031
- Karkanis, George Yanni, geologist, fl 1918-19541