Around the globe, Song-In (Song-In 
, สงอินทร์ 
) is an extremely rare unknown gender first name. Much more prevalently, Song-In is the last name as well as the forename. Parts of the name also exists independently as a last name Song, and a last name In.
| VARIANT | COUNTRY |
|---|---|
| Song-In | United States |
| สงอินทร์ | Thailand |