Family name Estupiiñan (Estupiiñan 
) , throughout the world, is a very rare surname. The surname Estupiiñan is characteristic of Latin America and the Caribbean, particularly Colombia, where it is a very rare surname. Much less frequently, Estupiiñan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Estupiiñan | Spain, Colombia |