All around the world, บุญชาย (บุญชาย 
) is a rare boy's first name. The forename บุญชาย is characteristic of South-eastern Asia, particularly Thailand, where it is a rare male name. Very seldom, บุญชาย is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| บุญชาย | Thailand |