Surname Cauyag (Cauyag 
) , all around the world, is a very rare family name. The cognomen Cauyag is characteristic of Philippines, where it is a very rare surname, and India, where it is an extremely rare surname. Very seldom, Cauyag is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cauyag | India, Philippines |