Surname Brostko (Brostko 
) , in all the world, is a very rare last name. The cognomen Brostko is habitual in New Zealand, where it is a very rare surname, Germany, where it is an extremely rare surname, and the United States. Also, Brostko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Brostko | United States, New Zealand, Germany, Poland |