Family name กาญจนมงคล (กาญจนมงคล 
, Kanmongkol , Karnchanamongkol ) , in the world, is a rare cognomen. The surname กาญจนมงคล is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Karnchanamongkol, กาญจนมงคล, Kanmongkol | Thailand |
| Kanchanamongkol | United States, Thailand |