Family name Sittirut (Sittirut 
) , in all the world, is an extremely rare surname. The last name Sittirut is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, Sittirut is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sittirut | United States, Thailand |