Family name Дементьев (Дементьев 
, Dementev 
, Dementyev 
, and others...) , around the world, is a common surname. The cognomen Дементьев is habitual in Russia, where it is quite a common surname, Kazakhstan, where it is quite a rare surname, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Дементьев | Kazakhstan, Belarus, Kyrgyzstan, Russia, Ukraine |
| Dementev | Canada, United States, Germany, Russia, Ukraine |
| Dementyev | Israel, Belarus, Azerbaijan, Germany, Russia |
| Dementjew | Germany, Ukraine |
| Dement'Ev | Canada, Russia, Bulgaria, Belarus |
| Dementiev | Moldova, Israel, United States, Germany, Russia |
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николай иванович дементьев Russian writer (1907-1935), RU (b. 1907) |
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василий алексеевич дементьев RU (b. 1908) |
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| сергей афанасьевич дементьев UA (b. 1866) |
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андрей дмитриевич дементьев Russian writer (1928-2018), RU (b. 1928) |
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дементьев, василий александрович RU (b. 1935) |
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| дементьев, георгий петрович Russian ornithologist (1898-1969), RU (b. 1898) |
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| дементьев, александр григорьевич literary scholar and journalist (1904-1986), RU (b. 1904) |
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| дементьев, василий фёдорович RU (b. 1896) |
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| дементьев петр васильевич minister of the USSR aviation industry, colonel general, Hero of the Socialist Labour (twice), RU (b. 1907) |
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| дементьев, иван андреевич RU (b. 1901) |
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| дементьев, борис михайлович Soviet documentary cameraman, RU (b. 1911) |
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| дементьев, пётр тимофеевич Soviet association football player (1913-1998), RU (b. 1913) |
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| дементьев, николай тимофеевич Russian footballer (1915-1994), RU (b. 1915) |
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| дементьев, иван павлович UA (b. 1912) |
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| дементьев, александр андреевич RU (b. 1912) |
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