Cognomen ก๊าส (Kat 
, ก๊าส) , throughout the world, is a common family name. The last name ก๊าส is habitual in Malaysia, where it is quite a rare surname, Netherlands, and Macao. Measured by absolute frequency, it is the most numerous in India, Malaysia, and Myanmar. Also, ก๊าส is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kat | Australia, Malaysia, India, United States, Myanmar |