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