| Hanoi Sign | |
| States: | Vietnam |
| Speakers: | 39,000 |
| Date: | 2015 |
| Ref: | e25 |
| Familycolor: | sign language |
| Fam1: | (SE Asian sign area) |
| Fam2: | Deaf-community sign language |
| Fam3: | Vietnamese sign languages |
| Iso3: | hab |
| Glotto: | hano1243 |
| Glottorefname: | Hanoi Sign Language |
Hanoi Sign Language is the deaf-community sign language of the city of Hanoi in Vietnam. It is about 50% cognate with the other sign languages of Vietnam, and its vocabulary has been extensively influenced by the French Sign Language once taught in Vietnamese schools for the deaf.