Simko, Šimko or Simkó is a surname. Notable people with the surname include:
* Simko Ahmed (born 1972)
Kurdish artist
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David Simko (born 1954), American racing driver
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Imre Simkó (1939–2021), Hungarian sport shooter
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Ivan Šimko (born 1955), Slovak politician
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Joe Simko, American illustrator
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Julián Šimko (1886–1956), Slovak politician
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Kate Simko, American electronic music producer
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Marek Šimko (born 1988), Slovak ice hockey player
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Patrik Šimko (born 1991), Slovak footballer
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Pavel Šimko (born 1982), Slovak triathlete
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