Cognomen Gup-Ay (Gup-Ay 
) , in all the world, is a very rare last name. The surname Gup-Ay is characteristic of South-eastern Asia, particularly Philippines, where it is a very rare surname. Parts of the name also exists independently as a last name Gup, and a last name Ay.
| VARIANT | COUNTRY |
|---|---|
| Gup-Ay | Philippines |