Surname Knuijt (Knuijt 
) , all around the world, is a rare last name. The family name Knuijt is characteristic of Netherlands, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Knuijt is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Knuijt | United States, Netherlands, Spain |