Family name Ciolan (Ciolan 
, Чолан 
) , throughout the world, is quite a rare cognomen. The cognomen Ciolan is characteristic of Eastern Europe, particularly Romania, where it is quite a common surname, Moldova, where it is quite a rare surname, and Ukraine, where it is a rare surname. In absolute terms, it most frequently occurs in Romania, Ukraine, and Afghanistan. Much less frequently, Ciolan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ciolan | Romania, Italy, Spain, Moldova, Afghanistan |
| Чолан | Kazakhstan, Romania, Russia, Belarus, Ukraine |
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antonin ciolan RO (b. 1883) |
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| eliza ciolan Romanian pianist, RO (b. 1900) |
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| ioan n. ciolan (b. 1899) |
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| emilian ciolan local Romanian politician in Dârmănești, Argeș County, RO |
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| costică ciolan Romanian politician from Soveja, Vrancea County, RO |
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| laura e ciolan researcher (ORCID 0000-0001-5999-8133) |
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| lucian ciolan (b. 1974) |
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| ana ciolan (b. 1992) |
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Mr, Olga, Oana, Maria, Mihai, Sorin, Alina, Alpha, Andra, Bryan, Ioan, Paula, Diana, Doina, Laura, Lidia, Liviu, James, Tudor, Nadir, Elena, David, Igor, Ilie, Vlad, Ms, Ana, Dan, Ion, Mike, Alex, Alin, Alan, Anna, Anca, Paul, Raul, Dana, Doru, Lala, Loni, Jose, John, Nicu, Nelu, Emil, Eugen, and Irina