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 |
|---|---|
| Ketkarn, Ketekarn, เกตุกาญจน์ | Thailand |
| Ketkan | Malaysia, India, United States, Thailand |
Ketchanakan, Ketkanchan, and Kettakarn