- Karmal, Babrak1
- Karpov, Anatolii1
- Keldysh, Mstislav1
- Kibalchich, Nikolai1
- Konev, Ivan1
- Korolenko, Evgenii1
- Krebs, Evgenii1
- Krzhizhanovskii, Gleb1
- Kulibin, Ivan1
- Kurdiumov, Georgii1
- Károlyi, Antal1
- Lablonskaia, Tatiana1
- Lebedev, Sergei1
- Legall, Alberto1
- Leonov, Alexey1
- Likhachev, V. A.1
- Lomonosov, Mikhail1
- Lunev, Afanasii1
- Maurer, Monica1
- Mendeleev, Dmitrii1