Around the world, Zither (Siter 
, Cithara 
, Zither 
) is a rare unisex first name. The forename Zither is habitual in Romania, where it is a rare boy's name, Tanzania, where it is a very rare female name, and Indonesia, where it is a very rare masculine name. Measured by absolute frequency, this name is the most popular in Indonesia, India, and Romania. Also, Zither is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Siter | Indonesia, Romania, Myanmar, United States, Slovenia |
| Cithara | South Africa, Spain, Malaysia, Philippines, India |
| Zither | Tanzania, South Africa, United States, Philippines |