Cognomen Mostowik (Mostowik 
) , around the world, is a rare family name. The surname Mostowik is habitual in Poland, where it is a rare surname, Australia, where it is a very rare surname, and the United States, where it is an extremely rare surname. More prevalently, Mostowik is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mostowik | United Kingdom, United States, Germany, Poland, Australia |
| joanna mostowik researcher |
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| magdalena mostowik researcher |
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| monika mostowik (b. 1975) |
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