Family name Trifonova (Trifonova 
, Трифонова 
) , worldwide, is a common surname. The cognomen Trifonova is characteristic of Bulgaria, where it is a common surname, Russia, where it is quite a common surname, and Latvia, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Eastern Europe, particularly Russia, Bulgaria, and Ukraine.
| VARIANT | COUNTRY |
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| Trifonova | Latvia, Bulgaria, Spain, United States, Russia |
| Трифонова | Bulgaria, Russia, Kazakhstan, Ukraine, Belarus |
| jordanka atanasova trifonova (b. 1952) |
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| olga trifonova soprano (1969-) (b. 1969) |
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| natalia s trifonova researcher (ORCID 0000-0002-2891-3421) |
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| v.i. trifonova botanist |
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| oxana p trifonova researcher ORCID ID = 0000-0002-5803-2529 |
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| e a trifonova researcher ORCID 0000-0003-1311-7403 |
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| neda trifonova researcher (ORCID 0000-0003-3332-4901) |
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| evgeniya a trifonova researcher ORCID ID = 0000-0003-2973-6241 |
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| radiana t trifonova researcher |
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| slavena t trifonova researcher |
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| ekaterina trifonova researcher (ORCID 0000-0002-0679-6818) |
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| o b trifonova researcher |
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| olga trifonova researcher |
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| anna nikolaevna trifonova RU (b. 1977) |
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| ginka trifonova FR |
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Mr, Petq, Pepi, Pepa, Rosi, Rita, Rumi, Deni, Desi, Dani, Dina, Dima, Didi, Dora, Gala, Galq, Geri, Gina, Lada, Lena, Lina, Lili, Kiki, Liza, Keti, Kate, Ms, Ana, Ann, Ani, Avi, Kat, Eli, Eva, Efi, Ina, Iva, Ida, Mary, Maya, Mila, Mira, Mimi, Anna, Anya, Asya, Kati, Katq, and Lora