Last name Буйнов (Буйнов 
, Buinov 
, Bujnov ) , all around the world, is quite a rare cognomen. The last name Буйнов is habitual in Eastern Europe, particularly Belarus, where it is quite a rare surname, Russia, where it is a rare surname, and Bulgaria. Measured by absolute frequency, it is commonest in Eastern Europe, particularly Russia, Ukraine, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Буйнов | Kazakhstan, Russia, Belarus, Bulgaria, Ukraine |
| Buinov | Germany, Russia, United Kingdom, United States, Ukraine |
| Bujnov | Germany |
| Buynov | Russia, Italy, Spain, Bulgaria, United States |
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стоян буйнов BG (b. 1839) |
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буйнов дмитрий дмитриевич Azerbaijani architect, AZ (b. 1859) |
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александър буйнов Bulgarian politician (1879-1924), BG (b. 1879) |
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александр николаевич буйнов Soviet and Russian actor and musician, RU (b. 1950) |
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николай николаевич буйнов RU (b. 1941) |
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| буйнов, николай васильевич RU (b. 1923) |
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| юрий владимирович буйнов UA (b. 1952) |
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| николай михайлович буйнов businessperson (b. 1967), RU (b. 1967) |
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