Last name บุญสงวน (บุญสงวน 
, Boonsanguan 
) , throughout the world, is a rare surname. The surname บุญสงวน is habitual in Thailand, where it is a rare surname, Malaysia, where it is an extremely rare surname, and the United States. Very seldom, บุญสงวน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| บุญสงวน | Thailand |
| Boonsanguan | Thailand, United States, Malaysia |