Surname Ostarek (Ostarek 
) , in the entire world, is a rare cognomen. The surname Ostarek is habitual in Czechia, where it is quite a rare surname, Germany, where it is a rare surname, and Poland. Very seldom, Ostarek is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ostarek | Argentina, United States, Czechia, Poland, Germany |
| günter ostarek DE (b. 1946) |
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| michael ostarek (b. 1950) |
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| hans ostarek (b. 1952) |
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| markus ostarek researcher |
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| claudia ostarek DE |
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