Last name Kieto (Kieto 
) , in the world, is a rare surname. The cognomen Kieto is habitual in Angola, where it is a rare surname, France, where it is an extremely rare surname, and the United Kingdom. Likewise, Kieto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kieto | Angola, United States, India, France, Democratic Republic of the Congo |