Cognomen Ostrauskas (Ostrauskas 
) , around the world, is a rare family name. The surname Ostrauskas is habitual in Lithuania, where it is quite a rare surname, Norway, where it is a very rare surname, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ostrauskas | Norway, United States, Lithuania, Russia |
| kostas ostrauskas LT (b. 1891) |
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henrikas ostrauskas (b. 1952) |
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| kostas ostrauskas LT (b. 1926) |
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| mecislovas ostrauskas (b. 1927) |
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| rytas ostrauskas (b. 1953) |
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| rytas ostrauskas researcher ORCID ID = 0000-0001-7465-9519 |
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