Surname Sangroj (Sangroj 
) , worldwide, is a very rare family name. The last name Sangroj is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, Sangroj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sangroj | Thailand |
Pawawongsak, and Pradubkaew