Surname Caluya (Caluya 
) , globally, is quite a rare family name. The surname Caluya is habitual in Philippines, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Kuwait. Not in comparison with a country's population, it most frequently occurs in Philippines, the United States, and Saudi Arabia.
| VARIANT | COUNTRY |
|---|---|
| Caluya | Philippines, United Arab Emirates, United States, Japan, Saudi Arabia |