Family name Smarandache (Smarandache 
) , worldwide, is quite a rare cognomen. The surname Smarandache is characteristic of Romania, where it is quite a rare surname, Andorra, and Bulgaria, where it is a rare surname. In absolute terms, this name is the most popular in Romania, Spain, and the United States. Very seldom, Smarandache is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Smarandache | Spain, Italy, United States, Romania, Germany |
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florentin smarandache American mathematician, US (b. 1954) |
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| adriana smarandache researcher ORCID ID = 0000-0002-4586-7551, RO |
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| roxana smarandache Ph.D. University of Notre Dame 2001 |
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| mihai smarandache Romanian actor, RO (b. 1982) |
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| diana smarandache RO |
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Mr, Laura, Lilia, Lucia, Tudor, Elena, Flori, Ionut, Ioana, Iulia, Marian, Marius, Milhai, Mirela, Mitita, Silviu, Simona, Stefan, Andrei, Angela, Adrian, Carmen, Diana, Daria, Petre, Paula, Ms, Dan, Emi, Ion, Alma, Anca, Aghi, Cati, Paul, Radu, Costin, Dana, Tuta, Vlad, Ilie, Maria, Mihai, Sandu, Alina, Adina, Clara, Brien, Gabi, and Cristi