Last name สีสมุทร์ (สีสมุทร์ 
) , worldwide, is a very rare cognomen. The last name สีสมุทร์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, สีสมุทร์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สีสมุทร์ | Thailand |