Surname กาฬสิน (กาฬสิน 
) , across the world, is a very rare last name. The last name กาฬสิน is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, กาฬสิน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| กาฬสิน | Thailand |