Last name Ciras (Ciras 
) , in all the world, is a rare family name. The cognomen Ciras is habitual in Lithuania, where it is quite a rare surname, Philippines, where it is a very rare surname, and France. Measured by absolute frequency, it is the most numerous in Lithuania, the United States, and Philippines. Likewise, Ciras is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ciras | Philippines, India, Lithuania, Malaysia, United States |