Last name ทองมิตร (ทองมิตร 
, Thongmit ) , in all the world, is a rare family name. The surname ทองมิตร is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, ทองมิตร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thongmit, ทองมิตร | Thailand |
Thongmitai, Thongmitr, and Tongmitr