Last name อชา (Acha 
, Achah 
, อชา ) , around the globe, is a common surname. The surname อชา is characteristic of Cameroon, where it is quite a common surname, Bolivia, and Paraguay. Measured by absolute frequency, it is commonest in Nigeria, Cameroon, and Peru. Also, อชา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Acha | Nigeria, Democratic Republic of the Congo, Cameroon, Peru, Indonesia |
| Achah | Nigeria, Thailand, Cameroon, United States, India |
| อชา | Thailand |