Surname Saethu (Saethu 
) , all around the world, is a very rare last name. The family name Saethu is characteristic of South-eastern Asia, particularly Myanmar, where it is a very rare surname, and Thailand. Much less frequently, Saethu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saethu | Myanmar, Thailand, India |