Family name Buc (Buc 
, Буц 
, Буць ) , globally, is quite a common last name. The cognomen Buc is habitual in Ukraine, where it is quite a rare surname, Guatemala, and Slovakia. Measured by absolute frequency, it is the most numerous in Ukraine, Russia, and Guatemala. Very seldom, Buc is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Buc | Romania, France, Slovakia, Poland, Guatemala |
| Буц | Ukraine, Kazakhstan, Belarus, Russia, Kyrgyzstan |
| Буць | Kazakhstan, Russia, Ukraine, Kyrgyzstan |
| Trébuchet | France |
| george buc Antiquarian, courtier and writer, GB (b. 1560) |
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| stjepan buc (b. 1888) |
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philippe buc French historian, FR (b. 1961) |
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| štefan buc (b. 1910) |
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| milan buc (b. 1944) |
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| brigitte buc French actress and writer, FR |
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| gérard buc French judoka, FR |
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| ján buc (b. 1972) |
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| dávid buc Slovak ice hockey player, SK (b. 1987) |
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| margaret buc |
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| robert buc |
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| robert buc |
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| joannes buc NL |
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| josé buc |
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