Family name Donselaar (Donselaar 
) , in all the world, is quite a rare cognomen. The surname Donselaar is habitual in Netherlands, where it is quite a rare surname, Slovakia, where it is a rare surname, and Czechia. Measured by absolute frequency, this name is the most popular in Netherlands, Czechia, and the United States. Much less frequently, Donselaar is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Donselaar | Netherlands, Romania, United States, Czechia, Slovakia |
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rob van donselaar Dutch record producer, NL (b. 1952) |
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| johannes van donselaar botanist, NL (b. 1928) |
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| jaap van donselaar Dutch actor, NL (b. 1938) |
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| jaap van donselaar Dutch anthropologist, NL (b. 1953) |
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| m. e. donselaar (b. 1952) |
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| marinus eric donselaar researcher ORCID ID = 0000-0003-3509-8856 |
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| barent donselaar |
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| van donselaar |
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