Last name ถิระไพโรจน์กุล (ถิระไพโรจน์กุล 
) , around the globe, is an extremely rare surname. The cognomen ถิระไพโรจน์กุล is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ถิระไพโรจน์กุล | Thailand |