Last name บุญนัก (Merit 
, บุญนัก 
) , around the world, is quite a rare surname. The last name บุญนัก is habitual in Nigeria, where it is quite a rare surname, Ghana, where it is a rare surname, and Mexico. In absolute terms, it is the most numerous in Nigeria, Mexico, and France. Likewise, บุญนัก is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Merit | Egypt, Nigeria, France, Mexico, Zimbabwe |
| บุญนัก | Thailand |