Surname กาศ (Kat 
, กาศ 
) , globally, is a common last name. The surname กาศ is habitual in Malaysia, where it is quite a rare surname, Netherlands, and Macao. In absolute terms, it most frequently occurs in India, Malaysia, and Myanmar. Also, กาศ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kat | Australia, Myanmar, United States, India, Malaysia |
| กาศ | Thailand |