Family name เกตุกาญจน์ (Ketkarn 
, เกตุกาญจน์ , Ketkan 
) , across the world, is a rare last name. The surname เกตุกาญจน์ is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Also, เกตุกาญจน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เกตุกาญจน์, Ketekarn, Ketkarn | Thailand |
| Ketkan | India, Malaysia, Thailand, United States |
Ketchanakan, Ketkanchan, and Kettakarn