Family name ไสยะ (Saiya 
, ไสยะ ) , across the world, is quite a rare surname. The family name ไสยะ is characteristic of South-eastern Asia, particularly Laos, where it is quite a rare surname, Indonesia, where it is a rare surname, and Thailand. Measured by absolute frequency, it most frequently occurs in Indonesia, India, and Thailand. Likewise, ไสยะ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saiya | Laos, China, Thailand, India, Indonesia |
| ไสยะ | Thailand |