Family name สมุด (Samut 
, สมุด ) , around the globe, is quite a rare last name. The cognomen สมุด is characteristic of Malta, where it is quite a rare surname, Turkey, where it is a rare surname, and Bulgaria. In absolute terms, the name is most common in Turkey, Philippines, and Indonesia. Much less frequently, สมุด is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Samut | Philippines, Argentina, Thailand, Indonesia, Turkey |
| สมุด | Thailand |