Surname แก่นกล้า (Core 
, แก่นกล้า) , across the world, is a common last name. The last name แก่นกล้า is habitual in Uruguay, where it is quite a rare surname, Ireland, and Albania. In absolute terms, it most frequently occurs in the United States, Indonesia, and Italy. Much less frequently, แก่นกล้า is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Core | France, Italy, United Kingdom, United States, Indonesia |