Cognomen Исаков (Исаков 
, Issakow 
, Isakov 
, along with others...) , in the entire world, is a common last name. The last name Исаков is characteristic of Kyrgyzstan, where it is a common surname, Azerbaijan, where it is quite a common surname, and Serbia (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in Russia, Kyrgyzstan, and Uzbekistan.
| VARIANT | COUNTRY |
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| Исаков | Azerbaijan, Russia, Kyrgyzstan, Uzbekistan, Kazakhstan |
| Issakow | South Africa, Kenya, Germany |
| Isakov | Serbia, Israel, Azerbaijan, Russia, Uzbekistan |
| Isakow | Canada, South Africa, Somalia, Germany, United States |
| Issakov | Estonia, Israel, Russia, Kazakhstan, United States |
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николай васильевич исаков (1821-1891), RU (b. 1821) |
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сергей геннадиевич исаков Estonian literary scholar and politician (1931-2013), EE (b. 1931) |
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| исаков, степан ильич Russian writer and journalist (1884-1921), RU (b. 1884) |
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| наим исаков BG (b. 1875) |
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исаков, николай петрович RU (b. 1936) |
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| исаков, пётр петрович RU (b. 1888) |
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| пётр исаков Russian footballer (1900-1957), RU (b. 1900) |
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исмаил исак уулу исаков Kyrgyzstani general, KG (b. 1950) |
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исаков, вячеслав михайлович RU (b. 1945) |
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юрий исаков RU (b. 1948) |
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| исаков, василий иванович UA (b. 1898) |
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исаков, владимир ильич RU (b. 1950) |
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| юрий андреевич исаков Soviet ornithologist and biogeographer, RU (b. 1912) |
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| исаков, амангельды KZ (b. 1905) |
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| исаков, филипп анисимович BY (b. 1905) |
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