Family name อิทธา (Ittha 
, อิทธา ) , around the world, is a very rare surname. The surname อิทธา is habitual in Myanmar, where it is a very rare surname, Indonesia, and Mexico, where it is an extremely rare surname. Likewise, อิทธา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ittha | Indonesia, Mexico, Thailand, India, Myanmar |
| อิทธา | Thailand |