Cognomen Knoppert (Knoppert 
) , in the entire world, is a rare surname. The last name Knoppert is habitual in Netherlands, where it is quite a rare surname, Australia, where it is a very rare surname, and Spain.
| VARIANT | COUNTRY |
|---|---|
| Knoppert | Australia, Canada, Spain, United States, Netherlands |
| p.l. knoppert (b. 1924) |
|
|
| erik knoppert chess player (b. 1959) |
|
|
| theodora knoppert |
|
|
| elisabeth knoppert |
|
|
| anna knoppert |
|