Throughout the world, จามรรัตน์ (จามรรัตน์ 
, Jamornrat ) is a very rare predominantly female, but very seldom boy's first name. The first name จามรรัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare primarily girly, but very seldom masculine name. Much less frequently, จามรรัตน์ is the last name as well as the forename.