Name
- Kerckhove, Joseph Romain Louis, Vicomte1
- Kielmansegge, Adolph August Friedrich, Count, Hanoverian Minister in London1
- Konemenos, Georgios, Bey, Turkish diplomatist1
- Koumani, Alexis, Secretary at the Russian Embassy in Constantinople1
- Kuster, C., Russian Consul at Alexandria1
- La Valette, Charles Jean Marie Félix, Marquis, French diplomatist1
- Lacrosse, Bertrand Théobald Joseph, Baron, Secretary of the French Senate1
- Laurier, Clément1
- Lavovich1
- Layard, Austen Henry, GCB, archaeologist and politician, 1817-18941
- Le Chevalier, Georges, advocate, of Constantinople1
- Lehndorff, Count, ADC to the King of Prussia1
- Lennep, Richard J., Dutch Consul-General at Smyrna1
- Lesseps, Ferdinand Marie de, Vicomte designer of Suez Canal1
- Leszczyc, Hugo Julius Raoul Eduard, Count and (1882) Prince von Radolin-Radolinski, German diplomatist1
- Lhuys, Édouard, diplomat and statesman, 1805-18811
- Limburg-Stirum, Friedrich Wilhelm zu, Count, German diplomatist1
- Longworth, John Augustus, CB; Consul-General in Belgrade1
- Ludwig Joseph Anton Viktor, Archduke of Austria1
- Lyons, Richard Bickerton Pemell, 2nd Baron Lyons, Viscount Lyons 18871