# List of sign languages

There are perhaps three hundred sign languages in use around the world today. The number is not known with any confidence; new sign languages emerge frequently through creolization and de novo (and occasionally through language planning). In some countries, such as Sri Lanka and Tanzania, each school for the deaf may have a separate language, known only to its students and sometimes denied by the school; on the other hand, countries may share sign languages, although sometimes under different names (Croatian and Serbian, Indian and Pakistani). Deaf sign languages also arise outside educational institutions, especially in village communities with high levels of congenital deafness, but there are significant sign languages developed for the hearing as well, such as the speech-taboo languages used by some Aboriginal Australian peoples. Scholars are doing field surveys to identify the world's sign languages.
The following list is grouped into three sections :
* Deaf sign languages, which are the preferred languages of Deaf communities around the world; these include village sign languages, shared with the hearing community, and Deaf-community sign languages
* Auxiliary sign languages, which are not native languages but sign systems of varying complexity, used alongside spoken languages. Simple gestures are not included, as they do not constitute language.
* Signed modes of spoken languages, also known as manually coded languages, which are bridges between signed and spoken languages
The list of deaf sign languages is sorted regionally and alphabetically, and such groupings should not be taken to imply any genetic relationships between these languages (see List of language families).

## Sign language list
### Contemporary deaf sign languages
#### Africa

There are at least 25 sign languages in Africa, according to researcher Nobutaka Kamei. Some have distributions that are completely independent of those of African spoken languages. At least 13 foreign sign languages, mainly from Europe and America, have been introduced to at least 27 African nations; some of the 23 sign languages documented by Kamei have originated with or been influenced by them.
| Language | Origin | Notes |
| Adamorobe Sign Language | village sign | (ADS) (Ghana) |
| Algerian Sign Language | French | |
| Bamako Sign Language | local deaf community | used by adult men. Threatened by ASL. |
| Berbey Sign Language | family | Dogon region, Mali |
| Bouakako Sign Language | village | Ivory Coast |
| Bura Sign Language | village | in Nigeria |
| Burkina Sign Language | local | Ouagadougou (Langue des Signes Mossi) |
| Chadian Sign Language | ASL:Nigerian? | |
| Douentza Sign Language | local? village? | Dogon region, Mali |
| Eritrean Sign Language | creole |
| Eswatini Sign Language | Irish, British, & local | |
| Ethiopian sign languages | | 1 million signers of an unknown number of languages |
| Francophone African Sign Language | ASL & spoken French | The development of ASL in Francophone West Africa |
| Gambian Sign Language | ASL | |
| Ghanaian Sign Language | ASL | (GSE) |
| Guinean Sign Language | ASL | |
| Guinea-Bissau Sign Language | local | incipient/basic |
| Hausa Sign Language | local | "Maganar Hannu" (HSL) – Northern Nigeria (Kano State) |
| Kenyan Sign Language | local? | (KSL or LAK) |
| Lesotho Sign Language | BANZSL | |
| Libyan Sign Language | Arab? | |
| Malagasy Sign Language | French:Danish:Norwegian | (or "Madagascan Sign Language") May be a dialect of Norwegian SL |
| Maroua Sign Language | local | Cameroon |
| Mauritian Sign Language | isolate | |
| Moroccan Sign Language | ASL | |
| Mozambican Sign Language | | |
| Mbour Sign Language | local | M'Bour, Senegal |
| Namibian Sign Language | Paget-Gorman | |
| Nanabin Sign Language | village | a deaf family in Nanabin, Ghana |
| Nigerian Sign Language | ASL | |
| Rwandan Sign Language | | |
| Sao Tome and Principe Sign Language | rural | |
| Sierra Leonean Sign Language | ASL | |
| Somali Sign Language | Kenyan SL | |
| South African Sign Language | Irish & British | (SASL) |
| Sudanese sign languages | village & local? | Government proposal to unify local languages |
| Tanzanian sign languages | local | (seven independent languages, one for each deaf school in Tanzania, with little mutual influence) |
| Tebul Sign Language | village | (Tebul Ure SL) Mopti, Mali (village of Tebul Ure) |
| Tunisian Sign Language | French:Italian | |
| Ugandan Sign Language | local? | (USL) |
| Yoruba Sign Language | local | (YSL) |
| Zambian Sign Language | | (ZASL) |
| Zimbabwean sign languages | | "sign language" is an official language |

#### Americas

| Language | Origin | Notes |
| American Sign Language | United States and Canada | ASL is also officially recognized as a language in Canada due to the passage of Bill C-81, the Accessible Canada Act. Black American Sign Language is a dialect of ASL. |
| Argentine Sign Language | Spain and Italy | (Lengua de Señas Argentina – LSA) |
| Bay Islands Sign Language | village | Honduras. Deaf-blind. French Harbour Sign Language |
| Bolivian Sign Language | ASL/Andean | "Lenguaje de Señas Bolivianas" (LSB) |
| Brazilian Sign Language | French | Libras (Lingua Brasileira de Sinais) Recognized legally as a means of communication among the Brazilian Deaf community. |
| Bribri Sign Language | village? | |
| Brunca Sign Language | village? | |
| Carhuahuaran Sign Language | family | Peru |
| Cena | village | Brazil |
| Chatino Sign Language | family | |
| Chilean Sign Language | French? | Lenguaje de Señas Chileno (LSCH) |
| Colombian Sign Language | Andean | (CSN) / Lengua de Señas Colombiana (LSC) |
| Costa Rican Sign Language | | at least four languages in Costa Rica (Woodward 1991) |
| Old Costa Rican Sign Language | | |
| Cuban Sign Language | | |
| Dominican Sign Language | ASL | |
| Ecuadorian Sign Language | Andean | |
| Greenlandic Sign Language | Danish | "Kalaallisut Ussersuutit" (DTS) |
| Guatemalan Sign Language | | |
| Guyanese Sign Language | ? | |
| Haitian Sign Language | ASL | |
| Honduras Sign Language | Mexican? | "Lengua de señas hondureña" (LESHO) |
| Inmaculada Sign Language | Peruvian | Lima, Peru. Inmaculada is a school for the deaf. (see ref under Sivia SL) |
| Inuit Sign Language | village | "Inuit Uqausiqatigiit Uukturausiq Uqajuittunut (General Inuit Sign Language for deaf)" also known as Tikuraq (ᑎᑯᕋᖅ) There may be more than one. The indigenous languages is an isolate. |
| Jamaican Sign Language | ASL | (JSL) |
| Jamaican Country Sign Language | local | (JCSL) |
| Kajana Sign Language | village | Kajana Gebarentaal |
| Keresan Sign Language | village | (KPISL) |
| Macushi Sign Language | ? | Brazil [no data] |
| Marajo Sign Language | home sign? | Brazil |
| Maritime Sign Language | British | |
| Maxakali Sign Language | home sign? | if not home sign, at least a young language. Brazil |
| Mayan Sign Language | village | |
| Mexican Sign Language | French | "Lengua de señas mexicana" (LSM) |
| Navajo Sign Language | | |
| Nicaraguan Sign Language | local | "Idioma de señas nicaragüense" (ISN) |
| Old Cayman Sign Language | village | gave rise to Providence Island SL? |
| Panamanian Sign Language | ASL, some Salvadoran influence | "Lengua de señas panameñas" |
| Paraguayan Sign Language | related to Uruguayan, Old-French Sign Language | "Lengua de Señas Paraguaya" (LSPy) |
| Papiu Yanomama Sign Language | ? | Brazil [no data] |
| Peruvian Sign Language | Andean | "Lengua de señas peruana" |
| Plains Sign Language | historically a trade pidgin distinct from national norms | national forms maintained by some Plains nations |
| Puerto Rican Sign Language | ASL | "Lengua de señas puertorriqueña" |
| Providence Island Sign Language | village | |
| Quebec Sign Language | French-ASL mix | "Langue des Signes Québécoise" (LSQ) |
| Salvadoran Sign Language | isolate | "Lengua de señas salvadoreña" |
| Sivia Sign Language | village | Peru |
| South Rupununi Sign Language | village? | Guyana |
| Terena Sign Language | village | Brazil |
| Trinidad and Tobago Sign Language | isolate? | ASL taught in schools; most deaf bilingual |
| Uruguayan Sign Language | Old French Sign Language | "Lengua de Señas Uruguaya" |
| Ka'apor Sign Language | village | (a.k.a. Urubu Sign Language, although this name is pejorative) |
| Venezuelan Sign Language | isolate | "Lengua de señas venezolana" (LSV) |

#### Asia-Pacific

| Language | Origin | Notes |
| Afghan Sign Language | indig, or ASL creole? | |
| Alipur Sign Language | village | |
| Amami Oshima Sign Language | village or idioglossia | Japan |
| Auslan | British | (Australian Sign Language) |
| Ban Khor Sign Language | village | (Plaa Pag is a dialect) |
| Bhutanese Sign Language | ? | |
| Burmese sign language | ASL | may be two languages |
| Cambodian Sign Language | = mixed LSF, BSL, ASL, various dialects within | |
| Chinese Sign Language | Chinese | "中國手語" (ZGS) |
| Enga Sign Language | village | PNG |
| Esharani | isolate | Iranian Sign Language, main sign language used in Iran |
| Filipino Sign Language | mixed ASL, various dialects | (FSL) or Philippine Sign Language (Filipino: Wikang pasenyas ng mga Pilipino). |
| Ghandruk Sign Language | village | (Nepal) |
| Hawaiʻi Sign Language | ? | Hoailona ʻŌlelo o Hawaiʻi |
| Hong Kong Sign Language | Shanghai Sign Language | "香港手語" (HKSL). Derives from the southern dialect of CSL. |
| Huay Hai Sign Language | village | (Thailand) [no data] |
| Indo-Pakistani Sign Language | Indian | conflicting reports on whether Indian and Pakistani SL are one language or two. |
| Jakarta Sign Language | ASL:Malaysian?:Indonesian | a variety of Indonesian Sign Language |
| Japanese Sign Language | Japanese | "Nihon Shuwa (日本手話)" (JSL) |
| Jhankot Sign Language | village | (Nepal) |
| Jumla Sign Language | village | (Nepal) |
| Kailge Sign Language | village, perhaps related to SSSL | PNG |
| Kata Kolok | village | (a.k.a. Bali Sign Language, Benkala Sign Language) |
| Laotian Sign Language | | (related to Vietnamese languages; may be more than one SL) |
| Korean Sign Language (KSDSL) | Japanese | "한국수어 (or 한국수화)" / "Hanguk Soo-hwa" Korean standard sign language – manually coded spoken Korean |
| Macau Sign Language | Shanghai Sign Language | "澳門手語" (MSL). Derives from the southern dialect of CSL. |
| Malaysian Sign Language | ASL | "Bahasa Isyarat Malaysia" (BIM) |
| Maldivian Sign Language (Dhivehi Sign Language) | Local, Indian, ASL | |
| Maunabudhuk–Bodhe Sign Language | village | Nepal |
| Mehek Sign Language | home sign? incipient? | PNG |
| Miyakubo Sign Language | village | Japan |
| Mongolian Sign Language | ? | "Монгол дохионы хэл" |
| Mount Avejaha Sign Language | village | PNG |
| Na Sai Sign Language | village | (Thailand) [no data] |
| Naga Sign Language | village? | (India) last reported in 1921 |
| Nepali Sign Language | Indian | Indigenous sign language with inputs from Indian Sign Language, American Sign Language, International Sign, and others |
| New Zealand Sign Language | British | (NZSL) |
| Old Bangkok Sign Language | local (or village?) | |
| Old Chiangmai Sign Language | local (or village?) | |
| Papua New Guinean Sign Language | British | |
| Penang Sign Language | local | (Malaysia) |
| Rennellese Sign Language | home sign, not a full language | (Solomon Islands) |
| Rossel Island Sign Language village | PNG | |
| Samoan Sign Language | Auslan | |
| Selangor Sign Language | ASL? | (Malaysia) |
| Sinasina Sign Language | village? | PNG, not clear if developed |
| Singapore Sign Language | French | A blend of ASL, Auslan, BSL, SEE2, SSL and locally-developed signs. |
| Solomon Islands Sign Language | | |
| Sri Lankan sign languages | local | (14 deaf schools with different languages) |
| Taiwanese Sign Language | Japanese | 臺灣手語 / Taiwan Ziran Shouyu |
| Tibetan Sign Language | local | |
| Thai Sign Language | ASL | (TSL) "แบบสะกดนิ้วมือไทย" (incl. Hai Yai) |
| Vietnamese sign languages | local | (Hanoi Sign Language, Ho Chi Minh Sign Language, Haiphong Sign Language; some may be related to some of the Thai languages) |
| Wanib Sign Language | village | PNG |
| Yogyakarta Sign Language | ASL:Malaysian?:Indonesian | a variety of Indonesian Sign Language |
| Yolŋu Sign Language | local | |

#### Europe

| Language | Origin | Notes and local name |
| Albanian Sign Language | | "Gjuha e Shenjave Shqipe" |
| Armenian Sign Language | isolate | |
| Azerbaijani Sign Language | French:Austro-Hungarian | "Azərbaycan işarət dili" (AİD) |
| Austrian Sign Language | French:Austro-Hungarian | "Österreichische Gebärdensprache" (ÖGS) |
| British Sign Language | British | (BSL) |
| Bulgarian Sign Language | French:Austro-Hungarian:Russian | |
| Catalan Sign Language | Catalan | (or "Catalonian Sign Language") "Llengua de Signes Catalana" (LSC) |
| Croatian Sign Language | French:Austro-Hungarian:Yugoslav | (Croslan) "Hrvatski Znakovni Jezik" (HZJ) |
| Czech Sign Language | French:Austro-Hungarian | "Český znakový jazyk" (ČZJ) |
| Cypriot Sign Language | ASL×GSL | "Κυπριακή Νοηματική Γλώσσα" (CSL) ("Kypriaki Noimatiki Glossa") |
| Danish Sign Language | French | "Dansk Tegnsprog" (DTS) |
| Dutch Sign Language | French | "Nederlandse Gebarentaal" (NGT) |
| Estonian Sign Language | | "Eesti viipekeel" |
| Finnish Sign Language | Swedish | "Suomalainen viittomakieli" (SVK) |
| Finland-Swedish Sign Language | Swedish | "finlandssvenskt teckenspråk" (Swedish) or "suomenruotsalainen viittomakieli" (Finnish). A single Swedish school in Finland, now closed. |
| Flemish Sign Language | Belgian | "Vlaamse Gebarentaal" (VGT) |
| French Sign Language | | "Langues des Signes Française" (LSF) |
| Georgian Sign Language | ? | |
| German Sign Language | German | "Deutsche Gebärdensprache" (DGS) |
| Greek Sign Language | French-ASL mix | "Ελληνική Νοηματική Γλώσσα" (GSL; "Elliniki Noimatiki Glossa") |
| Hungarian Sign Language | | "Magyar jelnyelv" |
| Icelandic Sign Language | French:Danish | "Íslenskt Táknmál" |
| Irish Sign Language | French | "Teanga Chomharthaíochta na hÉireann" (ISL/ISG and TCÉ) |
| Italian Sign Language | French | "Lingua dei Segni Italiana" (LIS) |
| Kosovar Sign Language | French:Austro-Hungarian:Yugoslav | "Gjuha e Shenjave Kosovare" (GjShK) |
| Latvian Sign Language | French | "Latviešu zīmju valoda" |
| Lithuanian Sign Language | | "Lietuvių gestų kalba" |
| Macedonian Sign Language | French:Austro-Hungarian:Yugoslav | Македонски знаковен јазик / Makedonski znakoven jazik |
| Maltese Sign Language | | "Lingwi tas-Sinjali Maltin" (LSM) |
| Northern Ireland Sign Language | British (mixed) | |
| Norwegian Sign Language | French:Danish | "Norsk tegnspråk" (NTS) |
| Polish Sign Language | Old-French, German | "Polski Język Migowy" (PJM) |
| Portuguese Sign Language | Swedish | "Língua Gestual Portuguesa" (LGP) |
| Romanian Sign Language | French | "Limbaj Mimico-Gestual Românesc" (LMG) |
| Russian Sign Language | French:Austro-Hungarian | "Russkiy zhestovyi yazyk" / русский жестовый язык |
| Slovakian Sign Language | | "Slovenský posunkový jazyk" |
| Slovenian Sign Language | French:Austro-Hungarian:Yugoslav | "Slovenski znakovni jezik" (SZJ) |
| Spanish Sign Language | isolate | "Lengua de signos española" (LSE) |
| Swedish Sign Language | Swedish | "Svenskt teckenspråk" (STS) |
| Swiss-French Sign Language | French? | "Langage Gestuelle" |
| Swiss-German Sign Language | French? | "Deutschschweizer Gebärdensprache" (DSGS) |
| Swiss-Italian Sign Language | French? | |
| Turkish Sign Language | Isolate | "Türk İşaret Dili" (TİD) |
| Ukrainian Sign Language | French | "Українська жестова мова (УЖМ)" ("Ukrainska Zhestova Mova") |
| Valencian Sign Language | | "Llengua de Signes en la Comunitat Valenciana" (LSCV) |
| Walloon Sign Language | Belgian | "Langue des Signes de Belgique Francophone" (LSFB) |
| Yugoslav Sign Language | French:Austro-Hungarian | |

#### Middle East

| Language | Origin | Notes |
| Al-Sayyid Bedouin Sign Language | village | (ABSL), Negev Israel |
| Central Taurus Sign Language | village | Turkey |
| Egyptian Sign Language | Arab | |
| Emirati Sign Language | Arab | |
| Ghardaia Sign Language | village | (Algerian Jewish Sign Language) deaf & hearing, Algeria → Israel |
| Iraqi Sign Language | Arab | لغة الاشارة العراقية Perhaps close to Levantine. |
| Israeli Sign Language | Large lexical base from DGS | שפת סימנים ישראלית (שס"י SHaSI) |
| Jordanian Sign Language | Arab, Levantine | Lughat il-Ishaarah il-Urduniah / لغة الاشارة الأردنية (LIU) |
| Kafr Qasem Sign Language | Arab, village | Kafr Qasim Israel |
| Kurdish Sign Language | local | ZHK |
| Kuwaiti Sign Language | Arab | لغة الاشارة الكويتية |
| Lebanese Sign Language | Arab, Levantine | Lughat al-Isharat al-Lubnaniya / لغة الإشارات اللبنانية |
| Mardin Sign Language | family | one extended family in Turkey |
| Omani Sign Language | Arab? | |
| Palestinian Sign Language | Arab, Levantine | "لغة الاشارات الفلسطينية" |
| Persian Sign Language | Persian | زبان اشاره پارسى |
| Qahvehkhaneh Sign Language | urban | Tehran. Moribund. |
| Qatari Unified Sign Language | Artificial/Arab | Unclear what the Qatari deaf community actually uses. An artificial attempt to standardize all Arab sign languages has resulted in a variety used mainly by hearing Qatari interpreters. |
| Saudi Sign Language | isolate | "لغة الإشارة السعودية" |
| Seraglio Sign Language | | Ottoman court |
| Syrian Sign Language | Arab, Levantine | |
| Yemeni Sign Language | Arab | "لغة الإشارة اليمنية" |

### Historical deaf sign languages

* Henniker Sign Language
* Martha's Vineyard Sign Language
* Old French Sign Language – ancestral to the French family
* Old Kent Sign Language – used in Kent villages in the 17th century, later incorporated into the British Sign Language.
* Sandy River Valley Sign Language

### Auxiliary sign languages

* Baby Sign – using signs to assist early language development in young children.
* Contact Sign – a pidgin or contact language between a spoken language and a sign language, e.g. Pidgin Sign English (PSE).
* Curwin Hand Signs – a technique which allows musical notes to be communicated through hand signs.
* International Sign (previously known as Gestuno) – an auxiliary language used by deaf people in international settings.
* Makaton – a system of signed communication used by and with people who have speech, language or learning difficulties.
* Mofu-Gudur Sign Language – conventional gestures used by speakers of Mofu-Gudur, a Chadic language spoken in northern Cameroon.
* Monastic sign language - sign languages used in Christian monasteries in Europe.
* Signalong – international sign assisted communication techniques used to support children and adults with communication or learning difficulties

### Manual modes of spoken languages

Manual modes of spoken languages include:
* General
** Cued Speech – a hand/mouth system (HMS) to render spoken language phonemes visually intelligible.
** Fingerspelling – alphabetic signs to represent the written form of a spoken language.
* English
** Manually Coded English
** Signing Exact English (SEE2)
** Makaton
* Malay
** Bahasa Malaysia Kod Tangan (BMKT)
* Speech-taboo languages
** Caucasian Sign Language
** Australian Aboriginal sign languages (though Yolŋu Sign Language does not correspond to any one language, and doubles as a language of the deaf)

## Genetic classification of sign languages

Languages are assigned families (implying a genetic relationships between these languages) as British, Swedish (perhaps a branch of BSL), French (with branches ASL (American), Austro-Hungarian, Danish, Italian), German, Japanese, and language isolates.
BANZSL family tree :
| | | | | | | | | | | | | | | | | | | Old British Sign Language (c. 1760–1900) | Old British Sign Language (c. 1760–1900) | Old British Sign Language (c. 1760–1900) | Old British Sign Language (c. 1760–1900) | Old British Sign Language (c. 1760–1900) | Old British Sign Language (c. 1760–1900) | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | Maritime SL (c. 1860–present) | Maritime SL (c. 1860–present) | Maritime SL (c. 1860–present) | Maritime SL (c. 1860–present) | Maritime SL (c. 1860–present) | Maritime SL (c. 1860–present) | | | | | | | Swedish SL family? (c. 1800–present) | Swedish SL family? (c. 1800–present) | Swedish SL family? (c. 1800–present) | Swedish SL family? (c. 1800–present) | Swedish SL family? (c. 1800–present) | Swedish SL family? (c. 1800–present) |
| Papua NG SL (c. 1990–present) | Papua NG SL (c. 1990–present) | Papua NG SL (c. 1990–present) | Papua NG SL (c. 1990–present) | Papua NG SL (c. 1990–present) | Papua NG SL (c. 1990–present) | Auslan (c. 1860–present) | Auslan (c. 1860–present) | Auslan (c. 1860–present) | Auslan (c. 1860–present) | Auslan (c. 1860–present) | Auslan (c. 1860–present) | New Zealand SL (c. 1870–present) | New Zealand SL (c. 1870–present) | New Zealand SL (c. 1870–present) | New Zealand SL (c. 1870–present) | New Zealand SL (c. 1870–present) | New Zealand SL (c. 1870–present) | British SL (c. 1900–present) | British SL (c. 1900–present) | British SL (c. 1900–present) | British SL (c. 1900–present) | British SL (c. 1900–present) | British SL (c. 1900–present) | Northern Ireland SL (c. 1920–present) | Northern Ireland SL (c. 1920–present) | Northern Ireland SL (c. 1920–present) | Northern Ireland SL (c. 1920–present) | Northern Ireland SL (c. 1920–present) | Northern Ireland SL (c. 1920–present) | South African SL (c. 1860–present) | South African SL (c. 1860–present) | South African SL (c. 1860–present) | South African SL (c. 1860–present) | South African SL (c. 1860–present) | South African SL (c. 1860–present) | | | | | | |
Danish Sign Language family tree :
| | | | | | | French Sign (c. 1760–present) | French Sign (c. 1760–present) | French Sign (c. 1760–present) | French Sign (c. 1760–present) | | | local/home sign | local/home sign | local/home sign | local/home sign |
| | | | | | | Danish Sign (c. 1800–present) | Danish Sign (c. 1800–present) | Danish Sign (c. 1800–present) | Danish Sign (c. 1800–present) | Danish Sign (c. 1800–present) | Danish Sign (c. 1800–present) |
| Faroese Sign (c. 1960–present) | Faroese Sign (c. 1960–present) | Faroese Sign (c. 1960–present) | Faroese Sign (c. 1960–present) | Faroese Sign (c. 1960–present) | Faroese Sign (c. 1960–present) | Greenlandic Sign (c. 1950–present) | Greenlandic Sign (c. 1950–present) | Greenlandic Sign (c. 1950–present) | Greenlandic Sign (c. 1950–present) | Greenlandic Sign (c. 1950–present) | Greenlandic Sign (c. 1950–present) | Icelandic Sign (c. 1910–present) | Icelandic Sign (c. 1910–present) | Icelandic Sign (c. 1910–present) | Icelandic Sign (c. 1910–present) | Icelandic Sign (c. 1910–present) | Icelandic Sign (c. 1910–present) | Norwegian Sign (c. 1820–present) | Norwegian Sign (c. 1820–present) | Norwegian Sign (c. 1820–present) | Norwegian Sign (c. 1820–present) | Norwegian Sign (c. 1820–present) | Norwegian Sign (c. 1820–present) |
| | | | | | | | | | | | | | | | | | | Malagasy Sign (c. 1950–present) | Malagasy Sign (c. 1950–present) | Malagasy Sign (c. 1950–present) | Malagasy Sign (c. 1950–present) | Malagasy Sign (c. 1950–present) | Malagasy Sign (c. 1950–present) |
French Sign Language family tree :
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Old French Sign Language (influenced by l'Epée c. 1760–89) | Old French Sign Language (influenced by l'Epée c. 1760–89) | Old French Sign Language (influenced by l'Epée c. 1760–89) | Old French Sign Language (influenced by l'Epée c. 1760–89) | Old French Sign Language (influenced by l'Epée c. 1760–89) | Old French Sign Language (influenced by l'Epée c. 1760–89) | | | | |
| | | | | | | | | | | | | | | | | Belgian Sign Language (c. 1790–2000) | Belgian Sign Language (c. 1790–2000) | Belgian Sign Language (c. 1790–2000) | Belgian Sign Language (c. 1790–2000) | Belgian Sign Language (c. 1790–2000) | Belgian Sign Language (c. 1790–2000) | | | | | | | | | | | Austro-Hungarian Sign Language (c. 1780–1920) | Austro-Hungarian Sign Language (c. 1780–1920) | Austro-Hungarian Sign Language (c. 1780–1920) | Austro-Hungarian Sign Language (c. 1780–1920) | Austro-Hungarian Sign Language (c. 1780–1920) | Austro-Hungarian Sign Language (c. 1780–1920) | | | | | | |
| American Sign Language (c. 1820–present) | American Sign Language (c. 1820–present) | American Sign Language (c. 1820–present) | American Sign Language (c. 1820–present) | American Sign Language (c. 1820–present) | American Sign Language (c. 1820–present) | French Sign Language (c. 1790–present) | French Sign Language (c. 1790–present) | French Sign Language (c. 1790–present) | French Sign Language (c. 1790–present) | French Sign Language (c. 1790–present) | French Sign Language (c. 1790–present) | French Belgian Sign Language (c. 1970–present) | French Belgian Sign Language (c. 1970–present) | French Belgian Sign Language (c. 1970–present) | French Belgian Sign Language (c. 1970–present) | French Belgian Sign Language (c. 1970–present) | French Belgian Sign Language (c. 1970–present) | | | Flemish Sign Language (c. 1970–present) | Flemish Sign Language (c. 1970–present) | Flemish Sign Language (c. 1970–present) | Flemish Sign Language (c. 1970–present) | Flemish Sign Language (c. 1970–present) | Flemish Sign Language (c. 1970–present) | Dutch Sign Language (c. 1790–present) | Dutch Sign Language (c. 1790–present) | Dutch Sign Language (c. 1790–present) | Dutch Sign Language (c. 1790–present) | Dutch Sign Language (c. 1790–present) | Dutch Sign Language (c. 1790–present) | | | | | | | | | Italian Sign Language (c. 1830–present) | Italian Sign Language (c. 1830–present) | Italian Sign Language (c. 1830–present) | Italian Sign Language (c. 1830–present) | Italian Sign Language (c. 1830–present) | Italian Sign Language (c. 1830–present) |
Swedish Sign Language family tree :
| | | | | | | Old British Sign Language? (c. 1760–1900) | Old British Sign Language? (c. 1760–1900) | Old British Sign Language? (c. 1760–1900) | Old British Sign Language? (c. 1760–1900) | Old British Sign Language? (c. 1760–1900) | Old British Sign Language? (c. 1760–1900) |
| | | | | | | Swedish Sign Language (c. 1800–present) | Swedish Sign Language (c. 1800–present) | Swedish Sign Language (c. 1800–present) | Swedish Sign Language (c. 1800–present) | Swedish Sign Language (c. 1800–present) | Swedish Sign Language (c. 1800–present) | | | | | | | | | | | | | | | | | |
| Portuguese Sign Language (c. 1820–present) | Portuguese Sign Language (c. 1820–present) | Portuguese Sign Language (c. 1820–present) | Portuguese Sign Language (c. 1820–present) | Portuguese Sign Language (c. 1820–present) | Portuguese Sign Language (c. 1820–present) | Finnish Sign Language (c. 1850–present) | Finnish Sign Language (c. 1850–present) | Finnish Sign Language (c. 1850–present) | Finnish Sign Language (c. 1850–present) | Finnish Sign Language (c. 1850–present) | Finnish Sign Language (c. 1850–present) |
| | | | | | | | | | | | | | | | | Cape Verdian Sign Language (c. 20th century–present) | Cape Verdian Sign Language (c. 20th century–present) | Cape Verdian Sign Language (c. 20th century–present) | Cape Verdian Sign Language (c. 20th century–present) | Cape Verdian Sign Language (c. 20th century–present) | Cape Verdian Sign Language (c. 20th century–present) | Finland-Swedish Sign Language (c. 1850–present) | Finland-Swedish Sign Language (c. 1850–present) | Finland-Swedish Sign Language (c. 1850–present) | Finland-Swedish Sign Language (c. 1850–present) | Finland-Swedish Sign Language (c. 1850–present) | Finland-Swedish Sign Language (c. 1850–present) | Eritrean Sign Language (c. 1950–present) | Eritrean Sign Language (c. 1950–present) | Eritrean Sign Language (c. 1950–present) | Eritrean Sign Language (c. 1950–present) | Eritrean Sign Language (c. 1950–present) | Eritrean Sign Language (c. 1950–present) |
| | | | | | | | | | | | | São Tomé and Príncipe Sign Language? (c. 21st century–present) | São Tomé and Príncipe Sign Language? (c. 21st century–present) | São Tomé and Príncipe Sign Language? (c. 21st century–present) | São Tomé and Príncipe Sign Language? (c. 21st century–present) | São Tomé and Príncipe Sign Language? (c. 21st century–present) | São Tomé and Príncipe Sign Language? (c. 21st century–present) | | | | | | | | | | |