Cognomen Jongsma (Jongsma 
) , all over the world, is quite a rare last name. The cognomen Jongsma is habitual in Netherlands, where it is quite a common surname, Latvia, where it is quite a rare surname, and Estonia, where it is a rare surname. In absolute terms, this name is the most popular in Netherlands, the United States, and Canada.
| VARIANT | COUNTRY |
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| Jongsma | Netherlands, Canada, Latvia, Australia, United States |
| cornelis jongsma NL (b. 1650) |
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| cornelis clases jongsma NL (b. 1670) |
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| jacobus jongsma NL (b. 1686) |
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georgius hiddema jongsma Dutch judge and politician, NL (b. 1806) |
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| ernst jongsma politician, NL (b. 1827) |
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lex jongsma Dutch chess player, NL (b. 1938) |
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| jacob lucas jongsma Dutch painter, NL (b. 1893) |
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| anton gerrit jongsma Dutch politician, NL (b. 1899) |
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| siemen jongsma Dutch singer, NL (b. 1909) |
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| cornelis jongsma politician, NL (b. 1921) |
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| baukje jongsma Dutch sportsperson and athletics competitor, NL (b. 1926) |
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| calvin jongsma Ph.D. University of Toronto 1982 (b. 1947) |
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| froukje jongsma Dutch speed skater, NL (b. 1952) |
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| arthur e. jongsma (b. 1943) |
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| hans jongsma NL (b. 1953) |
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