Last name สมุดทอง (สมุดทอง 
) , all over the world, is a very rare cognomen. The last name สมุดทอง is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, สมุดทอง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สมุดทอง | Thailand |