Around the world, แก้วคูณ (Kaewkoon 
, แก้วคูณ, Kaewkhoon ) is a very rare female first name. The first name แก้วคูณ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare girly name. More prevalently, แก้วคูณ is the last name as well as the forename.