Throughout the world, Sixto Domingo (Sixto Domingo 
) is a very rare boy's first name. The forename Sixto Domingo is characteristic of Latin America and the Caribbean, particularly Peru, where it is a very rare male name. Much less frequently, Sixto Domingo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sixto Domingo | Peru, Argentina, Spain, Chile, Ecuador |