Family name Омельченко (Омельченко 
, Omelchenko 
, Omel'Chenko 
) , across the world, is a common cognomen. The last name Омельченко is habitual in Ukraine, where it is quite a common surname, British Virgin Islands, and Russia. Measured by absolute frequency, it is the most numerous in Ukraine, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Омельченко | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Omelchenko | Russia, Serbia, United States, Canada, Ukraine |
| Omel'Chenko | Russia, Bulgaria, Belarus |
| Omeltchenko | Germany, France, United States, South Africa |
Omelczenko, and Омелченко
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омельченко, фёдор захарович UA (b. 1865) |
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омельченко антон лукич Ukrainian researcher of Antarctica (1883–1932), UA (b. 1883) |
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омельченко, василий иванович UA (b. 1918) |
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омельченко, николай григорьевич politician, UA (b. 1936) |
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олександр олександрович омельченко Ukrainian politician, UA (b. 1938) |
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| омельченко петро Ukrainian painter, UA (b. 1894) |
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омельченко, григорий емельянович Ukrainian politician, UA (b. 1951) |
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| омельченко тиміш петрович UA (b. 1895) |
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омельченко, валерий викторович Russian politician, RU (b. 1961) |
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| омельченко, яков андреевич RU (b. 1905) |
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| омельченко федора семенівна Soviet politician, UA (b. 1916) |
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омельченко олександр олександрович politician, UA (b. 1968) |
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| григорій микитович омельченко UA (b. 1911) |
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юрій омельченко Ukrainian orienteer, UA (b. 1971) |
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| омельченко, лев евгеньевич Ukrainian chess player, RU (b. 1922) |
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