Surname Sieti (Sieti 
) , all over the world, is a very rare last name. The cognomen Sieti is characteristic of Greece, where it is a rare surname, Italy, where it is an extremely rare surname, and the United Kingdom. Very seldom, Sieti is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sieti | United Kingdom, Italy, India, Greece, France |