Surname ไตรศักดิ์ (ไตรศักดิ์ 
, Trisak 
, Traisak ) , in the entire world, is a very rare cognomen. The last name ไตรศักดิ์ is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. More prevalently, ไตรศักดิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ไตรศักดิ์ | Thailand |
| Trisak | Indonesia, United States, Thailand, India |
| Traisak | United States, Thailand |