Last name นิลขำ (Onyx 
, นิลขำ) , in the entire world, is a rare cognomen. The family name นิลขำ is characteristic of Martinique, where it is quite a common surname, Myanmar, where it is a rare surname, and Indonesia, where it is a very rare surname. More prevalently, นิลขำ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onyx | Kenya, Ghana, United States, Democratic Republic of the Congo, Indonesia |