Cognomen Diada (Diada 
) , around the world, is a rare last name. The family name Diada is habitual in Philippines, where it is a rare surname, Indonesia, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in Philippines, Indonesia, and India. Much less frequently, Diada is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Diada | Philippines, Senegal, India, Indonesia, Malaysia |