Last name Atán (Atán 
) , all over the world, is an extremely rare cognomen. The last name Atán is characteristic of Costa Rica, where it is a very rare surname, Spain, where it is an extremely rare surname, and Argentina.
| VARIANT | COUNTRY |
|---|---|
| Atán | Argentina, Spain, Costa Rica |
| cecilia atán AR (b. 1978) |
|