Surname กาญจนพงศ์ (กาญจนพงศ์ 
, Kanjanapong , Kanaphong ) , globally, is a rare cognomen. The last name กาญจนพงศ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, กาญจนพงศ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| กาญจนพงศ์, Kanjanapong, Kanhapong, Kanaphong | Thailand |
Kanchanaphong, Kanchanapong, Kanchannapong, Kanjanaphong, Karnchanapong, Karnjanapong, and Khanarnpong