Cognomen Diarao (Diarao 
) , around the globe, is a very rare family name. The cognomen Diarao is characteristic of South-eastern Asia, particularly Philippines, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Diarao | Philippines |
Nony, Lilia, Elvira, Jun-Jun, Glenn Noel, and Maria Desiree Joy