In the world, Jan-Willem (Jan-Willem 
) is a rare boy's first name. The first name Jan-Willem is characteristic of Western Europe, particularly Netherlands, where it is quite a rare masculine name, Belgium, where it is a rare male name, and Germany, where it is a very rare male name. Measured by absolute frequency, this name is the most popular in Netherlands, Germany, and Indonesia. Much less frequently, Jan-Willem is the last name as well as the forename. Parts of the name also exists independently as a last name Jan, and a first name Willem.
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| Jan-Willem | Belgium, Hungary, Germany, Indonesia, Netherlands |
| jan-willem van buscom (b. 1797) |
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| jan-willem wikkerink Dutch resistance volunteer, NL (b. 1882) |
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jan-willem van erven dorens Olympic field hockey player, NL (b. 1934) |
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jan-willem van waning Dutch politician, NL (b. 1938) |
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| jan-willem janssen Dutch mayor, NL (b. 1895) |
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jan-willem van woudenberg Dutch rower, NL (b. 1948) |
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jan-willem veening Dutch university teacher, NL (b. 1978) |
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jan-willem gabriëls Dutch rower, NL (b. 1979) |
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jan-willem schut police officer from the Netherlands, NL (b. 1980) |
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jan-willem van hoof Dutch golfer, NL (b. 1982) |
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jan-willem breure Dutch media producer and artist, NL (b. 1988) |
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jan-willem hofkes |
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jan-willem van schip cyclist, NL (b. 1994) |
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| jan-willem van zijst dutch sculptor, graphic designer and glass artist, NL (b. 1945) |
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| jan-willem bomhof NL (b. 1945) |
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Mol, Meijer, Mulder, Bakker, Bruijn, Koster, Peters, Linden, Jansen, Visser, Velzen, Sanders, Schutte, Brouwer, Koopman, Peeters, Prinsen, Derksen, Jansens, Janssen, Dijkstra, Hendriks, Oomen, Vries, Evers, Groot, Bos, Van, Vos, Meij, Stam, Smit, Berg, Beek, Boon, Boom, Timmerman, Boer, Dijk, Jong, Hoek, Vink, Veen, Stoop, Akker, Bosch, Brink, Doorn, Blok, and Van Den Brink