Cognomen Ntoa (Ntoa 
) , across the world, is a rare family name. The family name Ntoa is habitual in Greece, where it is a rare surname, South Africa, and the United Kingdom, where it is an extremely rare surname. Also, Ntoa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ntoa | Greece, United Kingdom, Nigeria, South Africa |