Last name Janecka (Janecka 
, Янецкая 
) , around the globe, is quite a rare surname. The family name Janecka is characteristic of Eastern Europe, particularly Czechia, where it is quite a rare surname, Slovakia, and Poland. Measured by absolute frequency, it is the most numerous in Czechia, Poland, and the United States. Also, Janecka is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Janecka | Austria, Poland, Czechia, United States, Slovakia |
| Янецкая | Kyrgyzstan, Kazakhstan, Russia, Belarus |
| janina janecka Polish actress (1893-1938), PL (b. 1893) |
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| leonia janecka Polish illustrator and painter (1909-2003), PL (b. 1909) |
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| jagna janecka PL (b. 1921) |
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| maria janecka PL (b. 1928) |
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| roman janecka Czech actor, CZ (b. 1972) |
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| karolina janecka researcher (ORCID 0000-0003-4222-6246) |
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| magdalena janecka researcher ORCID ID = 0000-0001-7406-0776 |
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| anna janecka researcher ORCID ID = 0000-0001-5178-4464, PL |
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