Cognomen Ostrý (Ostrý 
) , across the world, is a rare surname. The surname Ostrý is characteristic of Eastern Europe, particularly Czechia, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ostrý | Czechia |
| františek ostrý Czech politician and entrepreneur, CZ (b. 1878) |
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| jindřich ostrý holocaust victim, b. 1880-06-23, CZ (b. 1880) |
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| egon ostrý holocaust victim, b. 1883-03-16, CZ (b. 1883) |
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| arnošt ostrý holocaust victim, b. 1883-06-25, CZ (b. 1883) |
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| metoděj ostrý CZ (b. 1888) |
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jaromír ostrý Czech journalist, CZ (b. 1954) |
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| viktor ostrý Czechoslovak actor (1907-1963), AT (b. 1907) |
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| jan ostrý CZ (b. 1909) |
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| josef ostrý CZ (b. 1921) |
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| františek ostrý (b. 1925) |
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| vlastimil ostrý Czech member of Czech Parliament (2002–2006), CZ (b. 1966) |
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| vladimír ostrý (b. 1957) |
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| milan ostrý researcher (ORCID 0000-0002-6712-912X) |
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| svatopluk ostrý researcher |
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| jan ostrý CZ (b. 1972) |
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