Last name Koyom (Koyom 
) , in the entire world, is a very rare surname. The surname Koyom is habitual in Malaysia, where it is a very rare surname, Thailand, where it is an extremely rare surname, and Nigeria. Also, Koyom is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koyom | Nigeria, Thailand, Malaysia, United States, India |