Cognomen กันถา (Kantha 
, กันถา ) , around the globe, is quite a common surname. The surname กันถา is characteristic of Sri Lanka, where it is quite a rare surname, Thailand, and Qatar. Measured by absolute frequency, it is the most numerous in India, Thailand, and Sri Lanka. Likewise, กันถา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kantha | Sri Lanka, South Africa, India, Bangladesh, Thailand |
| กันถา | Thailand |