Cognomen Basaistegui (Basaistegui 
) , all over the world, is a very rare family name. The last name Basaistegui is characteristic of Uruguay, where it is quite a rare surname, Spain, where it is an extremely rare surname, and the United States. Very seldom, Basaistegui is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Basaistegui | Spain, United States, Uruguay, Brazil |
| paula basaistegui Uruguayan handball player, UY (b. 1988) |
|