Last name Croupe (Crope 
, Croupe 
, Croup 
) , all over the world, is a rare surname. The last name Croupe is characteristic of Netherlands, where it is quite a rare surname, Switzerland, where it is a very rare surname, and South Africa. Measured by absolute frequency, it is the most numerous in Netherlands, the United States, and South Africa.
| VARIANT | COUNTRY |
|---|---|
| Crope | Brazil, Argentina |
| Croupe | United States, Canada |
| Croup | United States, France, United Kingdom, Russia |
| Kroep | United States, South Africa, Switzerland, Netherlands |