Cognomen คณ (Khana 
, คณ 
) , in the entire world, is a common last name. The surname คณ is habitual in India, where it is quite a rare surname, Qatar, and Saudi Arabia. Measured by absolute frequency, the name is most common in India, Indonesia, and Saudi Arabia. Likewise, คณ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khana | Morocco, Pakistan, India, Indonesia, Saudi Arabia |
| คณ | Thailand |