Surname Griñan (Griñan 
) , around the globe, is a rare last name. The family name Griñan is habitual in Cuba, where it is a rare surname, Spain, and Peru, where it is an extremely rare surname. Likewise, Griñan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Griñan | Cuba, Spain, Peru, United States |