Last name Sainz-Ruiz (Sainz-Ruiz 
) , around the world, is a very rare surname. The surname Sainz-Ruiz is habitual in France, where it is a very rare surname, and the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Sainz, and a last name Ruiz.
| VARIANT | COUNTRY |
|---|---|
| Sainz-Ruiz | France, United States |