Across the world, แจมจันทร์ (แจมจันทร์ 
) is quite a rare largely feminine, but uncommonly masculine first name. The given name แจมจันทร์ is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare mostly female, but infrequently boy's name. Also, แจมจันทร์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| แจมจันทร์ | Thailand |