Family name Kleefstra (Kleefstra 
) , globally, is a rare surname. The surname Kleefstra is habitual in Netherlands, where it is quite a rare surname, Switzerland, and Denmark, where it is a very rare surname. In absolute terms, it is the most numerous in Western Europe, particularly Netherlands, Switzerland, and France.
| VARIANT | COUNTRY |
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| Kleefstra | Netherlands, Switzerland, France, United States, South Africa |
| geertje kleefstra (b. 1874) |
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| annie catharina kleefstra NL (b. 1884) |
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romke kleefstra musical artist, NL (b. 1972) |
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| marcus kleefstra (b. 1930) |
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| frederike kleefstra Dutch singer, NL (b. 1960) |
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| tjitske kleefstra researcher (b. 1970) |
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| jan kleefstra NL (b. 1964) |
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| marcus kleefstra Ph.D. Rijksuniversiteit Groningen 1961 |
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| sophia martine kleefstra researcher ORCID ID = 0000-0003-1291-075X |
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| nanne kleefstra researcher |
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