Surname Cua-Yu (Cua-Yu 
) , all over the world, is an extremely rare last name. The last name Cua-Yu is characteristic of South-eastern Asia, particularly Philippines, where it is an extremely rare surname. Parts of the name also exists independently as a last name Cua, and a last name Yu.
| VARIANT | COUNTRY |
|---|---|
| Cua-Yu | Philippines |