Family name Kostadinova (Стефка 
, Kostadinova 
) , in all the world, is a common last name. The cognomen Kostadinova is characteristic of Bulgaria, where it is a common surname, North Macedonia, where it is quite a common surname, and Cyprus, where it is quite a rare surname. In absolute terms, it is commonest in Bulgaria, North Macedonia, and Greece. Much less frequently, Kostadinova is the forename as well as the last name.
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| Стефка | Ukraine, Russia, Bulgaria |
| Kostadinova | Afghanistan, Bulgaria, Greece, Italy, North Macedonia |
| nelly kostadinova (b. 1955) |
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| aneta k. kostadinova (b. 1957) |
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| asia kostadinova researcher |
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| atanaska i kostadinova researcher |
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| ofeliya kostadinova researcher |
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| aneta kostadinova biologist |
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| milena kostadinova researcher |
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| ivanka kostadinova researcher |
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| radostina ilieva kostadinova Dr. Technische Universität München 2006 |
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| tsvetelina kostadinova researcher (ORCID 0000-0001-6760-8043) |
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| maya kostadinova researcher (ORCID 0000-0002-5538-9485) |
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| anelia kostadinova researcher |
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| hristina kostadinova Ph.D. South-West University 2013 |
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| sanja kostadinova Ph.D. University of Novi Sad 2014 |
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| kristina a kostadinova researcher |
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Mr, Sara, Sisi, Soni, Sonq, Alex, Anna, Anii, Anka, Arzu, Asya, Bela, Beti, Bobi, Boby, Bube, Bile, Kati, Kate, Katq, Kami, Keti, Sany, Kemi, Mimi, Mira, Ms, Vj, Mia, Ana, Ani, Amy, Ada, Kam, Tea, Eli, Emi, Eva, Ina, Iva, Qna, Maya, Maia, Maja, Meri, Megi, Mila, Mita, and Petq