Family name Bacusoy (Bacusoy 
) , all around the world, is a very rare last name. The cognomen Bacusoy is habitual in Ecuador, where it is a rare surname, Spain, where it is a very rare surname, and Chile, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Spain, Ecuador, and the United States. Very seldom, Bacusoy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bacusoy | Ecuador, United States, Venezuela, Spain, Chile |