Cognomen Banua (Banua 
) , in the world, is a common surname. The cognomen Banua is habitual in Philippines, where it is quite a rare surname, India, where it is a rare surname, and Indonesia. Much less frequently, Banua is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Banua | Indonesia, Saudi Arabia, Philippines, United States, India |
| john richard banua ID (b. 1966) |
|