Surname Grootens (Grootens 
) , in all the world, is a rare family name. The cognomen Grootens is habitual in Netherlands, where it is a rare surname, Germany, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
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| Grootens | Netherlands, Germany, United States |
| adrie grootens Dutch painter and graphic artist (1864-1957), NL (b. 1864) |
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joost grootens Dutch designer, NL (b. 1971) |
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| koen p grootens researcher |
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| jennine grootens researcher (ORCID 0000-0003-4469-8589) |
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Mr, Klaus, Peter, Ruben, Debra, Laura, James, Jason, Jakob, Joost, Jenny, J P F, Naima, Noomi, Frank, Frans, Willy, Ylona, Marcel, Markus, Kevin, Karin, Anton, Suzan, Ms, Bas, G H, Jan, Ton, H J, Wim, Mike, Andy, Mathew, Anna, Gert, Gijs, Jaap, Theo, Eric, Erik, Henk, Ivan, Ward, Kian, and Maikel