Name
- Jürgens, J F, military draughtsman1
- Karl Ludwig Johann Joseph Lorenz, Archduke of Austria 3rd son of Emperor Leopold II1
- Kaufman, C W F, military draughtsman1
- Kazner, Andreas, military draughtsman1
- Keeper, A L, Midshipman HMS Isis1
- Kell, Louis, Deputy Provincial Surveyor of Quebec1
- Kelly, J G, of the Quartermaster General's Office1
- Kennion, —1
- Kirschberg, —, Captain1
- Kirschner, Johann C, military draughtsman1
- Kissan Persaud Doss, draughtsman, fl 18251
- Knisebeck, J C, military draughtsman1
- Konigseck, Lothaire Joseph Georges, Count Austrian general1
- La Motte-Piquet, Toussaint Guillaume, Comte French admiral1
- Laage Heyde, Mecklenburg-Schwerin?1
- Laforce, Hypolite, French military surveyor1
- Lake, Edward, military engineer1
- Lamorendiere, Norbert, French military surveyor1
- Lawson, P S1
- Le Bachelle, Henry Ernest, military engineer in the service of the Estates-General of the United Provinces1