Family name Agual (Agual 
) , across the world, is a very rare last name. The cognomen Agual is habitual in Ecuador, where it is a very rare surname, Australia, and India, where it is an extremely rare surname. Very seldom, Agual is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Agual | Australia, India, Spain, Ecuador |