Last name จริยากุล (จริยากุล 
, Jariyakun , Chariyakul 
) , in all the world, is a very rare cognomen. The last name จริยากุล is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, จริยากุล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| จริยากุล, Jariyakun | Thailand |
| Chariyakul | Thailand, United States |