Last name 龚讷 (龚讷 
) , in all the world, is a very rare cognomen. The cognomen 龚讷 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 龚讷 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 龚讷 | China |