Cognomen Троянов (Троянов 
, Troyanov 
, Troianov 
) , all over the world, is quite a rare last name. The surname Троянов is habitual in Eastern Europe, particularly Bulgaria, where it is quite a rare surname, Belarus, and Russia. Measured by absolute frequency, this name is the most popular in Eastern Europe, particularly Russia, Ukraine, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Троянов | Kazakhstan, Ukraine, Belarus, Bulgaria, Russia |
| Troyanov | Ukraine, Bulgaria, United States, Israel, Russia |
| Troianov | Georgia, United States, Russia |
| Trojanov | United States, Belarus |
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никола троянов BG (b. 1824) |
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троянов, алексей алексеевич RU (b. 1848) |
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| игорь иванович троянов UA (b. 1900) |
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| троянов, лев сергеевич RU (b. 1902) |
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| николай алексеевич троянов Soviet actor (1921-2016), UA (b. 1921) |
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троянов, константин леонидович Russian association football player, RU (b. 1995) |
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