Last name Theunisz (Theunisz 
) , all around the world, is a rare family name. The surname Theunisz is habitual in Netherlands, where it is quite a rare surname, Belgium, where it is a rare surname, and South Africa, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Theunisz | Belgium, South Africa, Canada, France, Netherlands |
| jan theunisz printer from the Netherlands (b. 1569) |
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frans theunisz Dutch Limburgish musician and vocalist, NL (b. 1946) |
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| johan theunisz Dutch poet (1900-1979), NL (b. 1900) |
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| n. theunisz |
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| valerio theunisz |
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