| Katarzyna Sobieska | |
| House-Type: | Szlachta |
| Noble Family: | Sobieski |
| Coa: | Janina |
| Father: | Jakub Sobieski |
| Mother: | Zofia Teofillia Daniłowicz |
| Spouse-Type: | Consort |
| Issue: | with Władyslaw Dominisk Zasławski Aleksander Janusz Zasławski-Ostrogski Teofilia Ludwika Zasławska with Michał Kazimierz Radziwiłł Jerzy Józef Radziwiłł Karol Stanisław Radziwiłł |
| Birth Date: | 7 January 1634 |
| Birth Place: | Złoczów |
| Death Place: | Warsaw |
Katarzyna Sobieska (1634 - 1694) was the sister of King John III Sobieski of Poland and a noblewoman. She married Władysław Dominik Zasławski in 1650. She was later married to Michał Kazimierz Radziwiłł on 13 June 1658.[1]