Family name 龙桑 (龙桑 
) , around the world, is a very rare cognomen. The cognomen 龙桑 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 龙桑 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 龙桑 | China |