All over the world, สิทธิ์วโรจน์ (สิทธิ์วโรจน์ 
) is a very rare male forename. The first name สิทธิ์วโรจน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare male name. Much less frequently, สิทธิ์วโรจน์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| สิทธิ์วโรจน์ | Thailand |