Cognomen Diyaya (Diyaya 
) , globally, is a rare surname. The cognomen Diyaya is habitual in the Democratic Republic of the Congo, where it is a rare surname, Philippines, where it is a very rare surname, and Pakistan. Much less frequently, Diyaya is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Diyaya | South Africa, Philippines, Nigeria, Pakistan, Democratic Republic of the Congo |