Family name Keau (Keau 
) , in the entire world, is a rare last name. The cognomen Keau is characteristic of Malaysia, where it is a rare surname, the United States, where it is an extremely rare surname, and India. Very seldom, Keau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Keau | Malaysia, India, United States |