Cognomen Theunissen (Theunissen 
) , all over the world, is a common family name. The surname Theunissen is characteristic of New Zealand, where it is quite a common surname, Netherlands, and Belgium. Not in comparison with a country's population, it is the most numerous in South Africa, Netherlands, and New Zealand.
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| Theunissen | Netherlands, Belgium, New Zealand, Germany, South Africa |
Theunißen, and Theunıssen
| petrus frans theunissen BE (b. 1713) |
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| jean baptiste theunissen (1794-1827), NL (b. 1794) |
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corneille theunissen French sculptor, FR (b. 1863) |
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michael wilhelm hamman theunissen Translator, ZA (b. 1902) |
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| nicolaas theunissen South African cricketer (1867-1929), ZA (b. 1867) |
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| danie theunissen South African rugby union player (b. 1869, d. 1964), ZA (b. 1869) |
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| charles theunissen flemish painter, BE (b. 1871) |
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| paul theunissen French sculptor, FR (b. 1873) |
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| cornelis johannes theunissen NL (b. 1865) |
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| karel theunissen BE (b. 1871) |
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bert theunissen Dutch footballer and manager, NL (b. 1939) |
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werner theunissen Dutch songwriter, NL (b. 1942) |
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will theunissen Dutch guitarist, NL (b. 1954) |
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| jan theunissen Catholic bishop, NL (b. 1905) |
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| gerard herman theunissen Dutch prisoner-of-war in World War II, ID (b. 1911) |
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