Family name Янсонг (Yansong 
, Янсонг 
) , around the globe, is a rare last name. The last name Янсонг is characteristic of China, where it is an extremely rare surname, Thailand, and Chile. Measured by absolute frequency, this name is the most popular in China, the United States, and Thailand. Much more frequently, Янсонг is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yansong | China, Panama, South Korea, Singapore, United States |
| Янсонг | Russia |