Surname Ostroski (Ostroski 
) , in the entire world, is quite a rare last name. The cognomen Ostroski is characteristic of Brazil, where it is a rare surname, Austria, and Croatia. In absolute terms, it is the most numerous in Brazil, the United States, and Argentina.
| VARIANT | COUNTRY |
|---|---|
| Ostroski | Brazil, Argentina, Canada, United States, Austria |
| jerry ostroski American football player, US (b. 1970) |
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| cassandra j ostroski researcher |
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| tayza katelline danilau ostroski researcher |
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| mike ostroski (b. 1975) |
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