Family name Smithuis (Smithuis 
) , around the world, is a rare cognomen. The surname Smithuis is characteristic of Netherlands, where it is quite a rare surname, Switzerland, where it is a rare surname, and Argentina, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Smithuis | Australia, Netherlands, Germany, Switzerland, Argentina |
| henricus smithuis DE (b. 1654) |
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patrick george smithuis NL (b. 1970) |
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| linda smithuis researcher ORCID ID = 0000-0001-8742-265X |
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| frank smithuis researcher (ORCID 0000-0002-4704-9915) |
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| renate smithuis GB |
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Mr, Diego, Elise, Frank, Frans, Wilma, Wilco, Mareen, Andres, Berend, Benthe, Bianca, Karien, Romée, Denice, Gerard, Herman, Heaven, Marieke, Martijn, Peter, Petra, Kevin, Simon, Kim, Rob, Luc, Jos, Tim, Marc, Maud, Mike, Arno, Monique, Bram, Dave, John, Joan, Juan, Tijn, Hans, Henk, Iris, Olav, Paul, and Michael