Family name Colff (Colff 
) , across the world, is a rare cognomen. The last name Colff is habitual in Namibia, where it is quite a rare surname, South Africa, where it is a rare surname, and the United Kingdom, where it is an extremely rare surname.
| VARIANT | COUNTRY |
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| Colff | United States, United Kingdom, South Africa, Namibia |
| marko van der colff actor |
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| dewidine van der colff researcher (ORCID 0000-0002-0906-7098) |
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| p.j. van der colff |
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| deandra van der colff Motswana swimmer, BW (b. 1993) |
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| david van der colff Motswana swimmer, BR (b. 1997) |
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Mr, Simone, André, Angela, Audrey, Rasmus, Daylin, Lindie, Lukkas, Jakkie, Joanne, Elsabe, Eurika, Hannes, Olivia, Willie, Willem, Werner, Montana, Almarie, Anelize, Aneetha, Meghan, Marius, Ezell, Erika, Ms, Mara, Alex, Carl, Glen, Jaco, Jean, Elco, Fred, Marko, Adriaan, Shane, Alwyn, Andre, Cobus, Kobus, Riaan, David, Janna, Johan, Tanya, Esmã, Susan, and Ashlene