Family name Sika (Sika 
, シカ 
, Siccus 
) , throughout the world, is a common cognomen. The family name Sika is characteristic of Sub-Saharan Africa, particularly Ghana, where it is quite a common surname, the Democratic Republic of the Congo, and Ivory Coast, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in India, the Democratic Republic of the Congo, and Ghana. Also, Sika is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Sika | Egypt, India, Ghana, Democratic Republic of the Congo, Ivory Coast |
| シカ | Japan |
| Siccus | Peru, Spain |
| Сіка | Ukraine |
| jan sika (1809-1871), CZ (b. 1809) |
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| jutta sika Austrian artist, AT (b. 1877) |
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| františek sika (b. 1897) |
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sika bella kaboré Togolese-born Burkinabé jurist, healthcare advocate, and wife of the President of Burkina Faso, BF (b. 1959) |
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| anton sika CZ (b. 1904) |
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semisi sika Tongan politician, TO (b. 1968) |
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| eva sika Austrian rower, AT (b. 1920) |
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| michael sika Austrian author and jurist, AT (b. 1933) |
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sika osei presenter and actor from Ghana, GH (b. 1985) |
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| jiří sika (b. 1932) |
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| seïdou mama sika Beninese politician, BJ (b. 1949) |
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| pavol sika (b. 1952) |
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| václav sika CZ (b. 1955) |
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| philemon opong sika Ghanaian artist, GH (b. 1966) |
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| p. o. sika Ghanaian painter, GH (b. 1966) |
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