Last name รัตนาพันธ์ (Rattanaphan 
, รัตนาพันธ์ , Ruttanaphan ) , worldwide, is quite a rare cognomen. The last name รัตนาพันธ์ is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname. Much less frequently, รัตนาพันธ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rattanaphan | Malaysia, United States, Thailand |
| รัตนาพันธ์, Ruttanapan, Ruttanaphan | Thailand |
Rantanapan, Ranttanapan, Rathanapant, Rattaanapan, Rattannapan, Rattnanphan, Rtattanapan, Rutanapun, Ruttanaphun, Ruttanapun, Ruttanapunt, and Rutthanapun