Last name Popoviciu (Popoviciu 
) , in all the world, is quite a rare cognomen. The family name Popoviciu is characteristic of Romania, where it is quite a rare surname, Austria, where it is a rare surname, and New Zealand. Measured by absolute frequency, the name is most common in Romania, the United States, and Spain. Much less frequently, Popoviciu is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Popoviciu | United States, Germany, France, Romania, Spain |
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virgil popoviciu RO (b. 1865) |
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ioan popoviciu RO (b. 1885) |
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tiberiu popoviciu Romanian mathematician, RO (b. 1906) |
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| teodor popoviciu RO (b. 1850) |
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| adam popoviciu RO (b. 1885) |
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| traian popoviciu (b. 1894) |
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| nicolae popoviciu RO (b. 1903) |
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| elena moldovan popoviciu Romanian mathematician, RO (b. 1924) |
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| gabriel popoviciu Gabriel Popoviciu, RO (b. 1959) |
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| alin augustin florin popoviciu Romanian politician, RO (b. 1973) |
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| horațiu popoviciu researcher (ORCID 0000-0002-2503-5555) |
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| nicolae popoviciu |
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Mr, Alina, Aurel, Calin, Delia, Diana, Dorin, Doina, Laura, Liviu, Alexa, Lucia, Elena, Ionut, Ioana, Iulia, Marius, Marcel, Monica, Mircea, Silvia, Tunde, Sonia, Mihai, Maria, Ms, Mia, Ana, Adi, Dan, Eva, Ion, Alex, Alin, Anna, Anca, Paul, Radu, Dana, Didi, Tavi, Nicu, Vlad, Ivan, Ioan, Oana, Silviu, and Simona