Last name Sík (Sik 
, Sík 
) , globally, is a common family name. The last name Sík is habitual in Hungary, where it is quite a rare surname, Taiwan, and Malaysia. Measured by absolute frequency, this name is the most popular in Eastern Asia, particularly China, South Korea, and Taiwan. Also, Sík is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sik | Taiwan, South Korea, India, Malaysia, China |
| Sík | Hungary |
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sík sándor Hungarian poet (1889-1963), HU (b. 1889) |
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sík ferencné (1929–2011), HU (b. 1929) |
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sík ferenc Hungarian director, HU (b. 1931) |
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| sík endre Hungarian historian and politician (1891-1978), HU (b. 1891) |
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| sík olga (1911-2007) voice teacher, opera singer, HU (b. 1911) |
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| jesajáhú tómá sík Anti-war activist (1939-2004), HU (b. 1939) |
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| sík csaba HU (b. 1934) |
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| sík attila neuroscientist, researcher and university professor, HU (b. 1966) |
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