Janusz Radziwiłł
Janusz Radziwiłł is the name of the following people
- Janusz Radziwiłł (1579–1620) , Lithuanian magnate, castellan of Vilnius
- Janusz Radziwiłł (1612–1655) , Lithuanian magnate, voivode of Vilnius
- Janusz Radziwiłł (1880–1967) , Polish landowner and politician
