Family name แก้วธิดา (Kaewtida 
, Kaewthida , แก้วธิดา) , all around the world, is a very rare cognomen. The cognomen แก้วธิดา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, แก้วธิดา is the forename as well as the last name.