Last name Kroust (Kroust 
) , all around the world, is a very rare cognomen. The cognomen Kroust is characteristic of Southern Europe, particularly Greece, where it is a rare surname. Also, Kroust is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kroust | Greece |
| johann michael kroust (b. 1694) |
|