Mikołaj Krzysztof Radziwiłł or Mykalojus Kristupas Radvila may refer to:
Mikołaj Krzysztof Radziwiłł the Orphan (1549–1616), Grand Marshal of Lithuania, voivode of Trakai and Vilnius Mikołaj Krzysztof Radziwiłł (1695–1715), Podstoli of Lithuania and starost of Człuchów Mikołaj Krzysztof Radziwiłł the Black (1515–1565), Grand Marshal of Lithuania, Grand Chancellor of Lithuania, Voivode of Vilnius
See also Mikołaj Radziwiłł (disambiguation)