Cognomen Poursat (Poursat 
) , all around the world, is a very rare last name. The family name Poursat is characteristic of Western Europe, particularly France, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Poursat | France |
| pierre dupont de poursat French Catholic priest, FR (b. 1761) |
|
|
| jean-claude poursat French archaeologist and school teacher, FR (b. 1934) |
|