Last name บูรณรัตน์ (บูรณรัตน์ 
, Buranarat , Boranrat 
) , worldwide, is a very rare cognomen. The family name บูรณรัตน์ is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, บูรณรัตน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| บูรณรัตน์, Buranarat, Buranrat | Thailand |
| Boranrat | United States, Thailand |