Cognomen คำ (Kham 
, Word 
, Khamn 
) , around the globe, is a widespread surname. The family name คำ is habitual in Mongolia, where it is a common surname, Myanmar, and Laos, where it is quite a common surname. Not in comparison with a country's population, it most frequently occurs in Myanmar, Mongolia, and the United States. Also, คำ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kham | Laos, United States, India, Myanmar, Mongolia |
| Word | Saudi Arabia, Malaysia, United States, India, Myanmar |
| Khamn | India, Pakistan, Myanmar, Malaysia |