Family name Rusca (Руска 
, Ruse 
, Rusca 
) , all over the world, is a common surname. The cognomen Rusca is characteristic of Bulgaria, where it is quite a common surname, Romania, and North Macedonia, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Bulgaria, Romania, and the United States. Likewise, Rusca is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Руска | Ukraine, Bulgaria, Russia |
| Ruse | Romania, Italy, Bulgaria, United States, Democratic Republic of the Congo |
| Rusca | Romania, United Kingdom, Italy, United States, Democratic Republic of the Congo |
| Rusc | Germany, United Kingdom, Italy, United States, Poland |
| loterio rusca Italian politician, IT (b. 1225) |
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| loterio rusca (b. 1440) |
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| pietro martire rusca CH (b. 1480) |
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nicolò rusca Swiss presbyter, CH (b. 1563) |
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| roberto rusca Italian historian, IT (b. 1565) |
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| girolamo rusca Roman Catholic bishop (b. 1569) |
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| claudia rusca Italian female composer (b. 1593) |
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| pietro martire rusca Roman Catholic bishop, IT (b. 1615) |
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| bartolomeo rusca Swiss painter (1680-1750), CH (b. 1680) |
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| cristoforo rusca CH (b. 1670) |
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| francesco carlo rusca Swiss painter (1696-1769), CH (b. 1693) |
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jean-baptiste dominique rusca French general, FR (b. 1759) |
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| giovanni battista rusca (b. 1718) |
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| giovanni battista rusca (b. 1729) |
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| antonio isidoro rusca Swiss politician (1757-1846), CH (b. 1757) |
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