Family name สินโท (Sintho 
, สินโท ) , all over the world, is a rare surname. The family name สินโท is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, สินโท is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sintho | United States, Thailand, India |
| สินโท | Thailand |