Family name Morales-Santoy (Morales-Santoy 
) , in the entire world, is an extremely rare surname. The cognomen Morales-Santoy is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Morales, and a last name Santoy.
| VARIANT | COUNTRY |
|---|---|
| Morales-Santoy | United States |