Family name Кудрявцев (Кудрявцев 
, Koudriavtsev 
, Kudryavtsev 
, along with others...) , in the world, is a common cognomen. The surname Кудрявцев is characteristic of Curacao, where it is a common surname, Russia, where it is quite a common surname, and Belarus. Measured by absolute frequency, it most frequently occurs in Russia, Ukraine, and Kazakhstan.
| VARIANT | COUNTRY |
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| Кудрявцев | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Koudriavtsev | Germany, Finland, United States, Canada, France |
| Kudryavtsev | Germany, Russia, Curacao, Belarus, United States |
| Kudriavtsev | Germany, Russia, Czechia, Estonia, United States |
| Kudrjawzew | Germany, Brazil |
| Kudrjavcev | Germany, Indonesia, Russia, Czechia, Latvia |
Kudriavcev, Kudriavtcev, Kudrjavtsev, Kudrjavzev, Kudryavcev, and Kudryavtsyev
| кудрявцев, нефед никитич RU (b. 1676) |
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кудрявцев петр николаевич Writer And Historian, RU (b. 1816) |
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евгений николаевич кудрявцев RU (b. 1837) |
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кудрявцев, пётр григорьевич RU (b. 1858) |
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пётр павлович кудрявцев UA (b. 1868) |
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кудрявцев, николай александрович Russian geologist, RU (b. 1893) |
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| александр николаевич кудрявцев UA (b. 1840) |
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кудрявцев, иван алексеевич UA (b. 1893) |
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кудрявцев, евгений фёдорович RU (b. 1900) |
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константин константинович кудрявцев Soviet sports coach (1912-1994), RU (b. 1912) |
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| александр кудрявцев RU (b. 1862) |
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| пётр филиппович кудрявцев RU (b. 1863) |
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кудрявцев, борис григорьевич RU (b. 1922) |
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| кудрявцев павло омелянович UA (b. 1873) |
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кудрявцев, александр георгиевич RU (b. 1923) |
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