Last name Kõiv (Kõiv 
, Кыйв 
) , throughout the world, is a rare family name. The last name Kõiv is characteristic of Northern Europe, particularly Estonia, where it is quite a rare surname, Sweden, where it is a rare surname, and Finland, where it is a very rare surname. Measured by absolute frequency, the name is most common in Estonia, Russia, and Sweden.
| VARIANT | COUNTRY |
|---|---|
| Kõiv | United States, Sweden, Estonia, Finland |
| Кыйв | Russia, Estonia |
| alfred kõiv Estonian clergyman, EE (b. 1899) |
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| voldemar kõiv Estonian journalist (1904-1988), EE (b. 1904) |
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| salme kõiv Estonian journalist and writer, EE (b. 1909) |
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reeli kõiv Estonian art historian (b. 1963) |
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tõnis kõiv Estonian politician, EE (b. 1970) |
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| eino kõiv Estonian actor (1926-2016), EE (b. 1926) |
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karoliine-lisette kõiv Estonian guitarist, EE (b. 1996) |
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| kristi kõiv researcher (ORCID 0000-0003-3486-3501) (b. 1959) |
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| mait kõiv Estonian historian, EE (b. 1961) |
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| urmas kõiv Estonian musician, EE (b. 1963) |
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| tõnu kõiv Estonian politician, EE (b. 1968) |
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| küllo kõiv Estonian wrestler, EE (b. 1972) |
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| kadri kõiv researcher |
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| viia kõiv researcher (ORCID 0000-0001-9044-0971) |
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| toomas kõiv researcher |
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Rea, Silja, Sirje, Signe, Aigar, Karin, Karel, Kaidi, Kadri, Kauri, Kerli, Keili, Keidi, Kevin, Kreyt, Raigo, Rauno, Roger, Gerli, Laura, Janis, Jaana, Meeli, Madis, Marek, Maria, Elo, Ene, Epp, Mike, Sven, Aili, Aado, Karl, Kadi, Kaja, Tanel, Kert, Rico, Riin, Jaan, Joel, Nele, Elen, Erik, Erki, Ivar, Urve, Klea, and Taavi