Last name Дементьева (Дементьева 
, Dementyeva 
, Dementeva 
, along with others...) , in the entire world, is a common surname. The family name Дементьева is habitual in Russia, where it is quite a common surname, Kazakhstan, and Moldova. In absolute terms, it is commonest in Russia, Kazakhstan, and Belarus.
| VARIANT | COUNTRY |
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| Дементьева | Kyrgyzstan, Russia, Kazakhstan, Belarus, Moldova |
| Dementyeva | Russia, Kazakhstan, United States, Cyprus, Latvia |
| Dementeva | Spain, Russia, Kazakhstan, Georgia, United States |
| Dement'Eva | Belarus |
| Dementieva | Czechia, Russia, Bulgaria, Georgia, United States |
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наталья леонидовна дементьева RU (b. 1945) |
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| валерия алексеевна дементьева Soviet actress, RU (b. 1907) |
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| дементьева, раиса фёдоровна Soviet politician, RU (b. 1925) |
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| елизавета григорьевна дементьева Soviet canoeist, RU (b. 1928) |
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елена дементьева Russian female tennis player, RU (b. 1981) |
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дементьева, анна юрьевна Russian artistic gymnast, RU (b. 1994) |
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валерия алексеевна дементьева ice dancer |
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мария дементьева RU (b. 1997) |
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