Cognomen Pastusiak (Pastusiak 
) , across the world, is a rare family name. The surname Pastusiak is habitual in Poland, where it is quite a rare surname, Germany, where it is a very rare surname, and the United Kingdom. More prevalently, Pastusiak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Pastusiak | Brazil, Germany, United Kingdom, France, Poland |
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piotr pastusiak Polish international basketball arbiter, PL (b. 1976) |
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| stefan pastusiak PL (b. 1920) |
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| janusz pastusiak PL (b. 1960) |
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| feliks pastusiak (b. 1961) |
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| simone pastusiak Brazilian figure skater, BR (b. 1979) |
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| radosław pastusiak Polish economist, PL |
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| joanna pastusiak Polish association football player, PL |
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