Cognomen Sairoj (Sairoj 
) , all around the world, is a very rare family name. The surname Sairoj is habitual in Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. More prevalently, Sairoj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sairoj | India, United States, Thailand |