Cognomen Crul (Curl 
, Crul 
) , globally, is quite a common last name. The last name Crul is habitual in Belgium, where it is quite a rare surname, the United States, and Croatia. Measured by absolute frequency, it is commonest in the United States, the United Kingdom, and Indonesia. Much less frequently, Crul is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Curl | Canada, Indonesia, United States, United Kingdom, Democratic Republic of the Congo |
| Crul | Netherlands, Belgium, Canada, United States, United Kingdom |
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cornelis crul Belgian playwright and poet, BE (b. 1500) |
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| j.f. crul (b. 1922) |
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| maurice crul researcher (b. 1961) |
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| tim crul researcher |
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| mirjam crul researcher |
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| floor crul |
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| i. crul |
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| koen crul |
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| adrie crul |
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| ben j.p. crul |
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