Cognomen Семанов (Семанов 
, Semanov 
) , in all the world, is a rare family name. The family name Семанов is habitual in Russia, where it is a rare surname, Greece, where it is a very rare surname, and Kazakhstan. Not in comparison with a country's population, it is commonest in Russia, Spain, and Greece.
| VARIANT | COUNTRY |
|---|---|
| Семанов | Kazakhstan, Russia, Ukraine |
| Semanov | Greece, Spain, Russia |
| николай афанасьевич семанов RU (b. 1897) |
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| владимир иванович семанов Soviet writer (1933-2010), RU (b. 1933) |
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| сергей николаевич семанов Soviet historian, RU (b. 1934) |
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