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