Last name ทองใหม่ (Thongmai 
, Tongmai , ทองใหม่) , worldwide, is a rare surname. The surname ทองใหม่ is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname, and Malaysia, where it is a very rare surname. Very seldom, ทองใหม่ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thongmai | Malaysia, United States, India, Laos, Thailand |
| Tongmai | India, Thailand |