Cognomen บุญเพิ่ม (Boonperm 
, Bunphoem , บุญเพิ่ม) , globally, is a rare surname. The last name บุญเพิ่ม is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, บุญเพิ่ม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bunphoem, Boonperm | United States, Thailand |
Boonkerm, Boonkhuean, Boonkuam, Boonnerm, Boonoen, Boonpaem, Boonpem, Boonphoem, Boonphurk, Boonpurm, Boonsups, Boonthuean, Bunerm, Bunperm, and Tunboonpherm