Cognomen บุณยะรัตน์ (Bunyarat 
, บุณยะรัตน์ ) , throughout the world, is a rare last name. The last name บุณยะรัตน์ is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Also, บุณยะรัตน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bunyarat | Malaysia, Thailand, United States |
| บุณยะรัตน์ | Thailand |