Cognomen Jirak (Jirak 
) , all around the world, is quite a rare family name. The last name Jirak is characteristic of Liechtenstein, where it is quite a common surname, Czechia, where it is quite a rare surname, and Slovakia, where it is a rare surname. In absolute terms, it is commonest in Czechia, the United States, and Austria. Very seldom, Jirak is the forename as well as the last name.
| karel jirak (b. 1897) |
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| franz jirak AT (b. 1911) |
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| georg jirak AT (b. 1943) |
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| peter jirak researcher |
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| magdalena jirak Austrian beach volleyball player, AT (b. 1986) |
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| leopold jirak |
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