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