| Elżbieta Szydłowiecka | |
| House-Type: | Szlachta |
| Noble Family: | Szydłowiecki |
| Coa: | Odrowąż |
| Father: | Krzysztof Szydłowiecki h. Odrowąż |
| Mother: | Zofia z Targowiska h. Tarnawa |
| Full Name: | Elżbieta Szydłowiecka z Szydłowca h. Odrowąż |
| Spouse: | Mikołaj "the Black" Radziwiłł h. Trąby |
| Spouse-Type: | Consort |
| Issue: | Mikołaj Krzysztof "the Orphan" Radziwiłł Jerzy Radziwiłł Albrycht Radziwiłł Stanisław Pius Radziwiłł Elżbieta Radziwiłł Zofia Agnieszka Radziwiłł Anna Magdalena Radziwiłł Krystyna Radziwiłł |
| Birth Date: | 1533 |
| Birth Place: | Szydłowiec |
| Death Place: | Vilnius |
Elżbieta Szydłowiecka (Lithuanian: Elžbieta Šydloveckaitė) (b. 1533, d. 1562) was a Polish–Lithuanian Calvinist noblewoman heiress.
She was the youngest daughter of Court and Great Chancellor Krzysztof Szydłowiecki and Zofia Tagrowicka h. Tarnawa.[1] She was born in 1533.[1] She married Chancellor, Marshal and Hetman Mikołaj Krzysztof "the Black" Radziwiłł on 12 February 1548.[1] Szydłowiecka died in 1562.[1]