Cognomen Karntida (Karntida 
) , all around the world, is an extremely rare family name. The surname Karntida is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more frequently, Karntida is the forename as well as the last name.
Karin, Jiraworapat, Prasongsophon, Mahatchariyakul, Klinraruean, Kaewwongsa, Yingsombut, Verochana, Vattananiyom, Pitimana-Aree, Kaewsuwan, Bodiratnangkura, Chaichada, Sri U Thai, Suwanwong, Thurakij, Thamsiri, Jeerasup, Chunkaew, Choophan, Thinsorn, Photima, Poomkacha, Chuamun, Supasri, Yoyrak, Deenuk, Prajak, Petrak, Buntun, Karnjanakunchorn, and Rattayapichat