Last name Kaplin (Kaplin 
, Каплин 
, Каплін ) , in the entire world, is quite a common family name. The cognomen Kaplin is characteristic of Eastern Europe, particularly Russia, where it is quite a rare surname, Belarus, and Ukraine. Not in comparison with a country's population, this name is the most popular in Russia, Ukraine, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Kaplin | United States, Spain, Finland, Russia, Canada |
| Каплин | Ukraine, Kazakhstan, Russia, Belarus, Kyrgyzstan |
| Каплін | Ukraine |
| קפלין | Israel |
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fats kaplin American musician, US |
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| l. a. kaplin (b. 1928) |
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| william a. kaplin (b. 1942) |
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| eve kaplin jewelry designer, US (b. 1956) |
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| stephen j. kaplin (b. 1957) |
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| aleksandr dmitrievič kaplin UA (b. 1961) |
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| scott kaplin researcher (ORCID 0000-0002-9464-0062) |
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| beth a kaplin researcher (ORCID 0000-0001-5396-5445) |
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| vladislav s kaplin researcher |
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| patrick kaplin Canadian cinematographer |
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| aviva wallace kaplin researcher |
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| adam kaplin researcher |
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| igor yu kaplin researcher |
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| dana kaplin researcher |
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| vladimir g. kaplin |
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