Cognomen Crupa (Crupa 
) , all around the world, is a rare family name. The last name Crupa is habitual in Moldova, where it is quite a rare surname, Romania, and the United Kingdom, where it is an extremely rare surname. Very seldom, Crupa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Crupa | Romania, United Kingdom, Moldova, United States, India |