Cognomen ตัณฑไพโรจน์ (ตัณฑไพโรจน์ 
) , across the world, is an extremely rare last name. The cognomen ตัณฑไพโรจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ตัณฑไพโรจน์ | Thailand |