Cognomen อรภักดิ์ (อรภักดิ์ 
, Orapak 
, Oraphak ) , worldwide, is an extremely rare surname. The surname อรภักดิ์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, อรภักดิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oraphak, อรภักดิ์, Orapukdee | Thailand |
| Orapak | United States, Thailand |
Oraphakdee, and Oraphakdi