All over the world, สัญญารัตน์ (สัญญารัตน์ 
) is a very rare dominantly feminine, but infrequently masculine first name. The forename สัญญารัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare mostly female, but uncommonly boy's name. Likewise, สัญญารัตน์ is the last name as well as the forename.