Family name Kirb (Kirb 
) , all around the world, is a very rare cognomen. The cognomen Kirb is habitual in Australia, where it is a very rare surname, the United Kingdom, where it is an extremely rare surname, and the United States. Likewise, Kirb is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kirb | Brazil, India, Australia, United States, United Kingdom |