Family name ไตรนาถ (ไตรนาถ 
) , across the world, is a very rare cognomen. The last name ไตรนาถ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, ไตรนาถ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ไตรนาถ | Thailand |