Surname Siemu (Siemu 
) , in all the world, is a very rare family name. The surname Siemu is characteristic of Tanzania, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Siemu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siemu | Tanzania, India, United States |