Surname Sanguiao (Sanguiao 
) , all around the world, is a rare family name. The surname Sanguiao is habitual in Uruguay, where it is a rare surname, Spain, and Argentina, where it is a very rare surname. Much less frequently, Sanguiao is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sanguiao | Uruguay, Venezuela, Spain, Argentina |