Cognomen ไหมทองคำ (ไหมทองคำ, Maithongkam 
) , around the world, is an extremely rare family name. The last name ไหมทองคำ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Maithongkam | Thailand |