Family name Kruythoff (Kruythoff 
) , in the entire world, is a rare cognomen. The cognomen Kruythoff is habitual in Netherlands, where it is a rare surname, Venezuela, where it is a very rare surname, and South Africa, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Netherlands, the United States, and South Africa.
| VARIANT | COUNTRY |
|---|---|
| Kruythoff | United Kingdom, South Africa, Netherlands, United States, Venezuela |
| gerardus cornelis johannes tielenius kruythoff Dutch prisoner-of-war in World War II, NL (b. 1895) |
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Lã, George, Jamila, Joshua, Jeanne, Justin, Nicole, Willem, Martine, Darius, Maureen, Chadira, Bruniel, Tielenius, Felicia, Sharleen, Giovanni, Laurence, Marjolein, Annette, Nicolette, Rosita, Ashley, Dirk, John, Nico, Eric, Carel, Karin, Percy, Ritha, Carmen, Danny, Léon, James, Ernst, Heidi, Marije, Miguel, Sandra, Sabine, Linda, and Frederika