Cognomen Coulat (Coulat 
) , across the world, is a rare surname. The surname Coulat is habitual in France, where it is a rare surname, Egypt, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Coulat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Coulat | Spain, France, Egypt, United States |