|Linguistic classification||deaf-community sign languages; possibly related to other sign languages of SE Asia|
haip1238 (Haiphong Sign Language)
The three deaf-community sign languages indigenous to Vietnam are found in Ho Chi Minh City, Hanoi, and Haiphong. The HCMC and Hanoi languages especially have been influenced by the French Sign Language (LSQ) once taught in schools, and have absorbed a large amount of FSL vocabulary.
The Vietnamese languages are part of a sign language area that includes indigenous sign languages of Laos and Thailand, though it is not known if they are genealogically related to each other. The influence of FSL may have obscured the links: the highest cognacy is with Haiphong Sign, which has been the least influenced by FSL.
There are attempts to develop a national standard language, Vietnamese Sign Language.
|Main foreign languages|
|Other foreign languages|
|Vietnamese sign languages|
^a Sign-language names reflect the region of origin. Natural sign languages are not related to the spoken language used in the same region. For example, French Sign Language originated in France, but is not related to French. Conversely, ASL and BSL both originated in English-speaking countries but are not related to each other; ASL however is related to French Sign Language.
^b Denotes the number (if known) of languages within the family. No further information is given on these languages.^c Italics indicate extinct languages.