Family name Kubaszewska (Kubaszewska 
) , throughout the world, is a rare cognomen. The cognomen Kubaszewska is characteristic of Poland, where it is a rare surname, the United Kingdom, where it is an extremely rare surname, and France. More frequently, Kubaszewska is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kubaszewska | Poland, France, United Kingdom |