Surname Syka (Syka 
) , in the world, is a rare cognomen. The surname Syka is habitual in Greece, where it is quite a rare surname, Cyprus, and Albania. Not in comparison with a country's population, it is the most numerous in Greece, Czechia, and Egypt. Much less frequently, Syka is the forename as well as the last name.
| antonín syka honorary consul of Colombia and Guatemala in Prague, banker, numismatist (1882-??), AT (b. 1882) |
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| rudolf syka CZ (b. 1877) |
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josef syka Czech neurologist and scientist, CZ (b. 1940) |
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| augustin syka (b. 1884) |
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| josef syka CZ (b. 1908) |
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| ján syka UA (b. 1922) |
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| zbigniew syka Polish sportsperson and athletics competitor, PL (b. 1936) |
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| martin syka Czech member of Czech Parliament (1992–1996) and member of Czech National Council, CZ (b. 1949) |
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| jan syka (b. 1947) |
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| karel syka CZ (b. 1949) |
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| josef syka researcher |
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| john e p syka researcher |
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