Surname Зайцев (Зайцев 
, Zaitsev 
, Zaytsev 
, and others...) , throughout the world, is a widespread family name. The last name Зайцев is habitual in Eastern Europe, particularly Belarus, where it is quite a common surname, Russia, and Ukraine (explore the name in all countries).
| VARIANT | COUNTRY |
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| Зайцев | Kyrgyzstan, Russia, Kazakhstan, Ukraine, Belarus |
| Zaitsev | Israel, United States, Russia, Estonia, Belarus |
| Zaytsev | Israel, United States, Belarus, Russia, Uzbekistan |
| Zajtsev | Ukraine, Belarus |
| Saizew | Spain, Argentina, United States, Canada, Germany |
| Sajzew | Germany |
| Zajcev | United States, Russia, Czechia, Indonesia, Germany |
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зайцев иван кондратьевич UA (b. 1805) |
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александр зайцев Russian chemist, RU (b. 1841) |
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варфоломей александрович зайцев Russian journalist and literary critic (1842-1882), RU (b. 1842) |
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зайцев, михаил герасимович politician, RU (b. 1864) |
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зайцев, алексей михайлович RU (b. 1856) |
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зайцев, филипп адамович entomologist (1877-1957), UA (b. 1877) |
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дмитрий иванович зайцев Russian politician and peasant, RU (b. 1880) |
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борис константинович зайцев writer, dramatist, FR (b. 1881) |
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зайцев, пётр егорович RU (b. 1872) |
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| зайцев, иона мордкович UA (b. 1828) |
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зайцев, иван матвеевич RU (b. 1879) |
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| николай лазаревич зайцев RU (b. 1836) |
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| зайцев, иван ульянович RU (b. 1837) |
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зайцев микола UA (b. 1894) |
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| михаил зайцев RU (b. 1845) |
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