Last name Konstantinov (Константинов 
, Konstantinov 
) , worldwide, is a common family name. The cognomen Konstantinov is habitual in Eastern Europe, particularly Bulgaria, where it is quite a common surname, Russia, and Belarus (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Eastern Europe, particularly Russia, Bulgaria, and Ukraine.
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| Константинов | Kazakhstan, Russia, Belarus, Bulgaria, Ukraine |
| Konstantinov | Uzbekistan, Russia, Serbia, Moldova, Bulgaria |
| andrey konstantinov (b. 1740) |
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konstantin konstantinov Russian general, PL (b. 1818) |
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angel konstantinov GR (b. 1834) |
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trayko konstantinov US (b. 1848) |
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| osip konstantinov (b. 1813) |
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grigory konstantinov (b. 1869) |
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| panteley konstantinov bulgarian public figure, MK (b. 1870) |
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| georgi konstantinov bistritski Bulgarian author, GR (b. 1875) |
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| ivan konstantinov Bulgarian teacher and folklorist, GR (b. 1883) |
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| spiro konstantinov bulgarian jurist, MK (b. 1887) |
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| petar konstantinov bulgarian footballer (b. 1907) |
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| ilia konstantinov bulgarian footballer (b. 1907) |
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| fyodor konstantinov (b. 1898) |
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| veselin marinov konstantinov b. 1910 d. 1937 (b. 1910) |
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| metodi konstantinov (b. 1902) |
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