Cognomen ก้องทองหลาง (ก้องทองหลาง, Kongtonglang 
) , all over the world, is an extremely rare family name. The cognomen ก้องทองหลาง is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kongtonglang | Thailand |