Family name Lopez Sainz (Lopez Sainz 
) , worldwide, is a rare cognomen. The family name Lopez Sainz is habitual in Spain, where it is a rare surname, Mexico, where it is a very rare surname, and Chile. Measured by absolute frequency, it is commonest in Spain, Mexico, and Colombia.
| VARIANT | COUNTRY |
|---|---|
| Lopez Sainz | Spain, Mexico, Chile, Colombia, United States |