Family name Jirsák (Jirsák 
) , throughout the world, is a rare surname. The cognomen Jirsák is habitual in Eastern Europe, particularly Czechia, where it is a rare surname.
| jindřich jirsák Czech pole vaulter, SK (b. 1885) |
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| josef jirsák CZ (b. 1881) |
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| josef jirsák CZ (b. 1890) |
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| čeněk jirsák (b. 1894) |
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| vilém jirsák CZ (b. 1902) |
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| miroslav jirsák (b. 1904) |
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| otto jirsák CZ (b. 1907) |
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| zbyněk jirsák CZ (b. 1910) |
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| jaroslav jirsák (b. 1923) |
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tomáš jirsák Czech footballer, CZ (b. 1984) |
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| leoš jirsák CZ (b. 1931) |
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| vítězslav jirsák CZ (b. 1940) |
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| oldřich jirsák CZ (b. 1947) |
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| vlastimil jirsák (b. 1958) |
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| jan jirsák researcher ORCID ID = 0000-0003-4833-503X (b. 1981) |
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