Surname จันทร์อำไพ (Chandumpai 
, จันทร์อำไพ, Janamphai 
) , in the world, is a rare family name. The surname จันทร์อำไพ is habitual in Thailand, where it is a rare surname, Malaysia, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Chandumpai | United States, Thailand |
| Janamphai | Malaysia, Thailand |
| Janampai | Thailand |