Last name Киля (Kilya 
, Kilia 
, Киля 
) , all over the world, is a rare cognomen. The cognomen Киля is habitual in Tanzania, where it is a rare surname, Greece, and Bulgaria. Measured by absolute frequency, it is commonest in Tanzania, Greece, and Russia. Also, Киля is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kilya | Tanzania, India, United States, Brazil, Mexico |
| Kilia | Spain, Tanzania, Colombia, United States, India |
| Киля | Bulgaria, Kazakhstan, Russia, Ukraine |