Family name Nicolescu (Nicolescu 
) , all around the world, is a common surname. The cognomen Nicolescu is characteristic of Romania, where it is quite a common surname, Austria, where it is a rare surname, and Afghanistan. Not in comparison with a country's population, the name is most common in Romania, Afghanistan, and the United States. Much less frequently, Nicolescu is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Nicolescu | Germany, Romania, United States, Afghanistan, France |
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alexandru nicolescu Romanian archbishop, RO (b. 1882) |
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constantin nicolescu (b. 1887) |
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| nifon nicolescu Romanian bishop, RO (b. 1858) |
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suzine har nicolescu American librarian (1931-2013), KR (b. 1931) |
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basarab nicolescu Romanian physicist, RO (b. 1942) |
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constantin nicolescu politician, RO (b. 1945) |
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| gheorghe nicolescu (b. 1892) |
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| ioan nicolescu Romanian chemist, professor at the University of Bucharest. He did research in heterogeneous catalysis and hydrocarbons (b. 1911) |
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| george cristea nicolescu Romanian literary critic (1911-1967), RO (b. 1911) |
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| corina nicolescu Romanian writer and art historian (b. 1922) |
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| tatiana nicolescu Professor of literature, RO (b. 1923) |
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| vasile nicolescu Romanian poet, RO (b. 1929) |
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| vasile d. nicolescu (b. 1919) |
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| mihai nicolescu Romanian politician, RO (b. 1942) |
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| gil nicolescu Romanian painter, RO (b. 1942) |
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