Last name กรัส (Krat 
, กรัส 
) , around the world, is a rare cognomen. The family name กรัส is habitual in Denmark, where it is quite a rare surname, Rwanda, where it is a rare surname, and Bulgaria. Measured by absolute frequency, it is the most numerous in Morocco, Rwanda, and Denmark. Also, กรัส is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Krat | Myanmar, Denmark, Morocco, India, Rwanda |
| กรัส | Thailand |