Cognomen Merchan Sempertegui (Merchan Sempertegui 
) , all around the world, is an extremely rare family name. The cognomen Merchan Sempertegui is characteristic of Latin America and the Caribbean, particularly Ecuador, where it is a very rare surname, and Chile, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Merchan Sempertegui | Chile, Ecuador |