Last name การกุศล (การกุศล 
, Charitum , Kanmusit ) , around the world, is a very rare cognomen. The cognomen การกุศล is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| การกุศล, Karnkrahsang, Kanmusit, Charitum | Thailand |
Charisit, Charith, Charitha, Charitnives, Charitr, Charitranont, Charitrat, Charitriab, Charitrum, Charitsue, Charitus, Charity, Karnkhunkid, and Karnkusol