Family name Constantinescu (Constantinescu 
, Константинеску 
, קונסטנטינסקו 
) , across the world, is a common last name. The last name Constantinescu is characteristic of Romania, where it is a common surname, Moldova, where it is quite a rare surname, and Cyprus. Not in comparison with a country's population, it is the most numerous in Romania, Afghanistan, and Italy. Much less frequently, Constantinescu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Constantinescu | Italy, Moldova, United States, Afghanistan, Romania |
| Константинеску | Russia, Ukraine |
| קונסטנטינסקו | Israel |
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iacovache constantinescu RO (b. 1827) |
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nicu constantinescu Romanian politician, RO (b. 1840) |
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alexandru c. constantinescu Romanian politician, RO (b. 1859) |
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george constantinescu Romanian engineer (1881-1965), RO (b. 1881) |
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| grigore constantinescu-monteoru politicianul pulii, RO (b. 1831) |
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mitiță constantinescu Romanian politician, RO (b. 1890) |
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pompiliu constantinescu Romanian literary critic, RO (b. 1901) |
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paul constantinescu Romanian composer, RO (b. 1909) |
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liviu constantinescu Romanian scientist (1914-1997), RO (b. 1914) |
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| athanasie constantinescu RO (b. 1861) |
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| grigore d. constantinescu Romanian journalist, RO (b. 1875) |
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corneliu constantinescu Romanian mathematician and emeritus professor of the Swiss Federal Institute of Technology (ETH) in Zurich, RO (b. 1929) |
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ovidiu constantinescu Romanian mycologist (1933-2012), RO (b. 1933) |
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| ilie constantinescu (b. 1874) |
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emil constantinescu Romanian politician, RO (b. 1939) |
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