Family name Donat (Donatus 
, Donat 
, Донат 
) , around the world, is a common last name. The cognomen Donat is habitual in Nigeria, where it is quite a common surname, Saint Lucia, and Poland, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Nigeria, Turkey, and Tanzania. Likewise, Donat is the forename as well as the last name.
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| Donatus | Tanzania, Nigeria, Indonesia, Germany, Cameroon |
| Donat | Tanzania, Turkey, Poland, Nigeria, Indonesia |
| Донат | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| donat de besançon saint, FR (b. 594) |
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donat Irish teacher, poet, Bishop of Fiesole and saint, IE (b. 701) |
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| donat Dalmatian saint, HR (b. 750) |
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| donat ier de melun (b. 790) |
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| donat of toggenburg Count of Toggenburg (b. 1358) |
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| donat conrad politician (b. 1450) |
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| donat hübschmann painter, DE (b. 1540) |
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donat johann heißler von heitersheim Austrian general, AT (b. 1648) |
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| donat józef ćěsla DE (b. 1614) |
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| christoph donat organ builder, DE (b. 1625) |
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donat nonnotte French painter (1708-1785), FR (b. 1708) |
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| donat varady szakmáry (1696-1754) (b. 1696) |
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| onofre peñalva donat ES (b. 1701) |
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| donat van den bogaerde 28 Jan 1717 Brugge - 6 Jun 1756 (b. 1717) |
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| samuel gottlieb donat (b. 1723) |
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