Cognomen Fedirko (Fedirko 
, Федирко 
) , in the entire world, is quite a rare last name. The cognomen Fedirko is habitual in Russia, where it is a rare surname, Kazakhstan, and Canada. Not in comparison with a country's population, it is commonest in Russia, the United States, and Canada. Very seldom, Fedirko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fedirko | United States, France, Russia, Poland, Canada |
| Федирко | Ukraine, Russia, Belarus, Kazakhstan |
| yevdokia fedirko Ukrainian Righteous Among the Nations, UA (b. 1900) |
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| rodion fedirko Ukrainian Righteous Among the Nations, UA (b. 1900) |
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| estelle fedirko researcher |
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| p fedirko researcher |
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| veronika fedirko researcher |
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