Family name Landaeta Diaz (Landaeta Diaz 
) , all around the world, is a very rare cognomen. The family name Landaeta Diaz is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname, and Ecuador.
| VARIANT | COUNTRY |
|---|---|
| Landaeta Diaz | Ecuador, Chile |
Julio, and John Felipe