Last name Kailar (Kailar 
) , throughout the world, is a rare surname. The cognomen Kailar is characteristic of Venezuela, where it is a very rare surname, India, where it is an extremely rare surname, and Argentina. In absolute terms, this name is the most popular in India, the United States, and Venezuela. Also, Kailar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kailar | Argentina, United States, Myanmar, Venezuela, India |