Last name กรุณ (Karun 
, Krun 
, กรุณ ) , in all the world, is quite a rare surname. The family name กรุณ is habitual in Slovenia, where it is quite a rare surname, United Arab Emirates, and Bahrain. In absolute terms, it is commonest in India, Thailand, and Indonesia. More frequently, กรุณ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Karun | Thailand, Nepal, India, Indonesia, Malaysia |
| Krun | Germany, Thailand, United States, India, Malaysia |
| กรุณ | Thailand |
คันธโชติ, and ศรีประเสริฐสุข