- Krzhizhanovskii, Gleb1
- Kulibin, Ivan1
- Kurchatov, Igor2
- Kurdiumov, Georgii1
- Kuroń, Jacek,1
- Lablonskaia, Tatiana1
- Lebedev, Sergei1
- Legall, Alberto1
- Lenin1
- Likhachev, V. A.1
- Lomonosov, Mikhail1
- Mary, Blessed Virgin, Saint1
- Maurer, Monica1
- Mendeleev, Dmitrii1
- Michnik, Adam,1
- Michurin, Ivan1
- Morozova, Olga1
- Mussolini, Benito1
- Méndez, Alberto1
- Méndez, Arnaldo Tamayo1