Family name รัตนะพันธ์ (Ratanaphan 
, รัตนะพันธ์ ) , around the world, is a rare surname. The surname รัตนะพันธ์ is characteristic of Thailand, where it is a rare surname, Malaysia, where it is an extremely rare surname, and the United States. Very seldom, รัตนะพันธ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ratanaphan | Thailand, United States, Malaysia |
| รัตนะพันธ์ | Thailand |