Chiangmai Sign Language

Chiangmai Sign Language (also known as Old or Original Chiangmai Sign Language) is a deaf-community sign language of Thailand that arose among deaf people who migrated to Chiang Mai for work or family. The language is moribund, with all speakers born before 1960. Younger generations have switched to Thai Sign Language.

Chiangmai Sign Language
Native to	Chiang Mai Thailand
Region	metro Chiang Mai
Native speakers	19 (2015)[1]
Language family	Chiangmai–Bangkok Sign
Language codes
ISO 639-3	csd
Glottolog	chia1237
ELP	Original Chiangmai Sign Language