Cognomen López Mejía (López Mejía 
) , in all the world, is a very rare last name. The cognomen López Mejía is habitual in Latin America and the Caribbean, particularly Guatemala, where it is a rare surname, Colombia, where it is a very rare surname, and Mexico, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| López Mejía | Colombia, Mexico, Guatemala |