- Kołakowski, Leszek1
- Krassó, György1
- Kruse, John1
- Krystufek, Zdenek1
- Kuper, Leo1
- Lash, Nicholas1
- Laub, Dori1
- Lavau, Georges E.1
- Lendvai, Paul1
- Löwenhardt, John1
- Mack Smith, Denis1
- Magos, Gábor1
- Magos-Gimes, Judit1
- Malgieri, Gennaro1
- McCavitt, William E.1
- Media and Opinion Research Department1
- Medvedev, F. E.1
- Miklós Hollós1
- Miłosz, Czesław1
- Monitoring Unit1