Cognomen Jelaska (Jelaska 
) , around the globe, is a rare last name. The last name Jelaska is habitual in Croatia, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
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| Jelaska | United States, Spain, Croatia |
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davor jelaska Croatian rower, HR (b. 1907) |
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| vicko jelaska (b. 1887) |
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| petar jelaska HR (b. 1926) |
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| sibila jelaska Croatian biologist, HR (b. 1938) |
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| zrinka jelaska (b. 1957) |
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| sven d. jelaska researcher |
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| igor jelaska researcher (ORCID 0000-0001-5566-5235) |
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| miroslav jelaska SI |
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| olja jelaska |
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| julije jelaska |
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| dijana jelaska |
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Mr, Ivan, Igor, Olja, Zora, Marin, Mario, Marko, Andro, Anita, Arsen, Boris, Karla, Petra, Petar, Denis, Davor, Damir, Diana, Dusko, Goran, Laura, Ines, Nika, Tina, Toni, Mia, Ana, Leo, Ida, Mara, Maja, Mile, Miro, Sven, Alan, Lenko, Ante, Aida, Kate, Roko, Dina, Dora, Duje, Lily, Luce, Luka, Toma, Anja, and Lovre