Last name Siritha (Siritha 
) , in the world, is a very rare surname. The last name Siritha is habitual in Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Likewise, Siritha is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siritha | United States, New Zealand, India, Thailand |