Cognomen Demmers (Demmers 
) , throughout the world, is a rare family name. The family name Demmers is characteristic of Netherlands, where it is quite a rare surname, Belgium, where it is a rare surname, and Sweden. In absolute terms, it is commonest in Netherlands, the United States, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Demmers | Sweden, Belgium, United States, Canada, Netherlands |
| helga demmers (b. 1891) |
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| joe e. demmers American politician, US (b. 1906) |
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| marga demmers Dutch translator, NL (b. 1950) |
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| jolle demmers Dutch historian and political scientist, NL (b. 1969) |
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| dennis demmers Dutch association football manager, NL (b. 1975) |
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| jeroen demmers researcher |
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| laura c demmers researcher |
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