Last name เดชพันธุ์ (เดชพันธุ์ 
, Detphan 
) , globally, is a rare surname. The surname เดชพันธุ์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname, Singapore, and Cambodia, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in South-eastern Asia, particularly Thailand, Singapore, and Malaysia. Very seldom, เดชพันธุ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เดชพันธุ์ | Thailand |
| Detphan | Cambodia, Malaysia, Singapore, Thailand |