Family name Келин (Kelin 
, Kelyn 
, Келин 
) , in the entire world, is a common surname. The cognomen Келин is characteristic of Honduras, where it is quite a common surname, Switzerland, where it is quite a rare surname, and Nicaragua. In absolute terms, it is commonest in Honduras, Russia, and Switzerland. Also, Келин is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kelin | China, Guatemala, Honduras, United States, Brazil |
| Kelyn | Guatemala, Honduras, Dominican Republic, United States, Brazil |
| Келин | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Kälin | Germany, Switzerland, Spain, United States |
| пётр иванович келин Russian painter (1874-1946), RU (b. 1874) |
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| келин, николай андреевич RU (b. 1896) |
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| келин, владимир фёдорович Soviet Russian actor and singer, RU (b. 1936) |
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| келин, андрей владимирович Russian diplomat, RU (b. 1957) |
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