Cognomen Sirirot (ศิริโรจน์ 
, สิริโรจน์ , Sirirot 
) , around the world, is quite a rare surname. The family name Sirirot is habitual in Thailand, where it is quite a rare surname, and the United States, where it is an extremely rare surname. Also, Sirirot is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ศิริโรโรจน์, สิริโรจน์, ศิริโรจน์ | Thailand |
| Sirirot | United States, Thailand |