Cognomen Kosiorowski (Kosiorowski 
) , in the entire world, is a rare surname. The last name Kosiorowski is characteristic of Poland, where it is quite a rare surname, Norway, where it is a very rare surname, and France. Measured by absolute frequency, it is the most numerous in Poland, the United States, and France. Likewise, Kosiorowski is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kosiorowski | Germany, Canada, France, Poland, United States |
| andrzej kosiorowski Polish writer, PL (b. 1935) |
|
|
|
michał kosiorowski PL (b. 1981) |
|
| zbigniew kosiorowski (b. 1944) |
|
|
| józef kosiorowski Polish Righteous Among the Nations, PL |
|
|
| grzegorz kosiorowski Polish mathematician, PL |
|
|
| piotr kosiorowski Polish footballer, PL (b. 1981) |
|
|
| sebastian kosiorowski association football player, PL (b. 1990) |
|