Cognomen Blaat (Blaat 
) , in the world, is a very rare surname. The family name Blaat is characteristic of Estonia, where it is a rare surname, Netherlands, where it is a very rare surname, and South Africa. Much less frequently, Blaat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Blaat | Netherlands, Estonia, South Africa |