Last name Ronquillo Diaz (Ronquillo Diaz 
) , all over the world, is a very rare surname. The surname Ronquillo Diaz is characteristic of Ecuador, where it is a rare surname, and Spain, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ronquillo Diaz | Ecuador, Spain |
Juan, Gina Maribel, and Rocio Mariana