Tai peoples refers to the population of descendants of speakers of a common proto-Tai language, including sub-populations which no longer speak a Tai language. Some 8-10 million people in Northeast India (not limited to Assam) descend from Ahom people but may have intermarried with others and now speak Assamese. Additional tens of thousands in India speak Tai languages (mostly in Arunachal Pradesh). Aside from India, Tai peoples can generally be identified through their language.
Speakers of the many languages in the Tai branch of the Tai–Kadai language family are spread over many countries in Southern China, Indochina and Northeast India. Unsurprisingly, there are many terms used to describe the distinct Tai peoples of these regions.
In China, Southwestern Tai peoples are called by the very large umbrella term "Dai people", distinguishing them from the other speakers from the Tai branch of Tai–Kadai, who are known as the Rau.
Endonyms outside of China vary greatly; most common are variants of Tai, which may be taken to mean human; the more restricted term Lao is of unknown origin.
The name "Lao" is used almost exclusively by the majority population of Laos, the Lao people, and two of the three other members of the Lao-Phutai subfamily of Southwestern Tai: Isan speakers (occasionally), the Nyaw or Yaw and the Phu Thai.
In contrast, the term T(h)ai predominates among Southwestern Thai speakers: Northern branch:
Shan
Tai Ya
Tai Nüa
Tai Hongjin
Khamti
Tai Laing
Tai Phake
Tai Aiton
Khamyang
Tai Ahom
Turung
Sapa
Chiang Saen branch:
Thai
Northern Thai
Tai Daeng
Tai Dón
Tai Hang Tong
Tai Lü
Tai Dam
Khün
Phuan
Thai Song
Tày Tac
Southern group
Southern Thai
In a paper published in 2004, Linguist Laurent Sagart hypothesized that the proto-Tai–Kadai language originated as an Austronesian language that migrants carried from Taiwan to mainland China. Afterwards, the language was then heavily influenced by local languages from Sino-Tibetan, Hmong–Mien, or other families, borrowing much vocabulary and converging typologically. Peoples speaking Tai languages migrated southward over the mountains into Southeast Asia, perhaps prompted by the coming of the Han Chinese to south China.
Linguistic heritage is not synonymous with genetic heritage, because of language shift where populations learn new languages. Tai people tend to have very high frequencies of Y-DNA haplogroup O2a with moderate frequencies of Y-DNA haplogroups O2a1 and O1. However, it is believed that the O1 Y-DNA haplogroup is associated with both the Austronesian people and the Tai. The prevalence of Y-DNA haplogroup O1 among Austronesian and Tai peoples also suggests a common ancestry with speakers of the Austroasiatic, Sino-Tibetan, and Hmong–Mien languages some 30,000 years ago in China (Haplogroup O (Y-DNA)). Y-DNA haplogroup O2a is found at high frequency among most Tai peoples, which is a trait that they share with the neighboring ethnic Austroasiatic peoples. Y-DNA haplogroups O1 and O2a are subclades of O Y-DNA haplogroup, which itself is a subclade of Y-DNA haplogroup K, a genetic mutation that is believed to have originated 40,000 years ago, somewhere between Iran and Central China.
Recent studies suggest that the Proto-Austronesian language may be distantly related to the Ongan languages of the Andaman Islands, and together with Austronesian and Ongan languages may be a relic of the language(s) spoken by descendants of the progenitor of Y-DNA haplogroup D (Blevins 2007).
Other Tai peoples and languages
Listed below are various lesser-known Tai peoples and languages.
Bajia 八甲 - 1,106 people in Mengkang Village 勐康村, Meng'a Township 勐阿镇, Menghai County, Yunnan, who speak a language closely related to Tai Lü. They are classified by the Chinese government as ethnic Dai people. In Meng'a Town, they are located in the village clusters of Mengkang 勐康 (in Shangnadong 上纳懂, Xianadong 下纳懂, and Mandao 曼倒), Hejian 贺建(in villages 6, 7, and 8), and Najing 纳京 (in villages 6, 7, and 8). Zhang (2013) reports that there are 218 households and 816 people in a total of 14 villages, and that the Bajia language is mutually intelligible with Tai. Another group of Bajia people in Manbi Village 曼必村, Menghun Town 勐混镇, Menghai County, Yunnan (comprising 48 households and 217 persons) has recently been classified by the Chinese government as ethnic Bulang people.
Tai Beng 傣绷 - over 10,000 people in Yunnan Province, China. Also in Shan State, Myanmar. In China, they are located in Meng'aba 勐阿坝, Mengma Town 勐马镇, Menglian County (in the 3 villages of Longhai 龙海, Yangpai 养派, and Guangsan 广伞); Mangjiao Village 芒角村, Shangyun Township 上允乡, Lancang County (in the 2 villages of Mangjing 芒京 and Mangna 芒那); Cangyuan County (in Mengjiao 勐角 and Mengdong 勐董 townships); Gengma County (in Mengding 勐定 and Mengsheng 勐省 townships); Ruili City (in small populations scattered along the border).
Han Tai - 55,000 people in the Mengyuan County, Xishuangbanna Prefecture, Yunnan, China. Many Han Tai also speak Tai Lu (Shui Tai), the local lingua franca.
Huayao Tai - 55,000 people (as of 1990) in Xinping and Mengyang Counties, Yunnan. It may be similar to Tai Lu.
Lao Ga - 1,800 people mostly in Ban Tabluang, Ban Rai District, Uthai Thani Province, Thailand. Their language is reportedly similar to Lao Krang and Isan.
Lao Krang - 50,000+ people in the provinces of Phichit, Suphan Buri, Uthai Thani, Chai Nat, Phitsanulok, Kamphaeng Phet, Nakhon Pathom and Nakhon Sawan,Thailand. Their language is similar to Isan and Lao. Tai Krang is not to be confused with Tai Khang, a Tai-speaking group of Laos numbering 5,000 people.
Lao Lom - 25,000 people in Dan Sai District of Loei Province (locally known as the Lao Loei or Lao Lei), Lom Kao District of Phetchabun Province, and Tha Bo District of Nong Khai Province (locally known as the Tai Dan). The Lao Lom were first studied by Joachim Schliesinger in 2001. Unclassified Southwestern Tai language.
Lao Ngaew - 20,000 to 30,000 people in Lop Buri Province (especially Ban Mi and Khok Samrong districts), the Tha Tako District of Nakhon Sawan Province and scattered parts of Singburi, Saraburi, Chaiyaphum, Phetchabun, Nong Khai and Loei provinces. Originally from eastern Xiengkhouang and western Huaphan provinces of Laos. Their language is similar to Isan.
Lao Ti - 200 people in the 2 villages of Ban Goh and Nong Ban Gaim in Chom Bung District, Ratchaburi Province, Thailand. Originally from Vientiane in Laos. Their language is similar to Lao and Isan.
Lao Wiang - 50,000+ people in Prachinburi, Udon Thani, Nakhon Sawan, Nakhon Pathom, Chai Nat, Lopburi, Saraburi, Phetchaburi and Roi Et. Originally from Wiang Chan (Vientiane) in Laos. Their language is similar to Lao.
Paxi - 1,000+ people (as of 1990) in 2 villages 8 km from Menghai Town, at the foot of Jingwang Mountain in Xishuangbanna.
Tai Bueng - 5,700 people in 2 villages of Phatthana Nikhom District, Lopburi Province, Thailand. The Tai Bueng live in the villages of Ban Klok Salung (pop. 5,000) and Ban Manao Hwan (pop. 600). Unclassified Tai language.
Tai Doi ('mountain people') - 230 people (54 families) as of 1995 in Long District of Luang Namtha, Laos. Their language is likely Palaungic.
Tai Gapong ('brainy Tai') - 3,200+ people; at least 2,000 people (500+ households) in Ban Varit, Waritchapum District, Sakhon Nakhon Province; also live with the Phutai and Yoy. The Tai Gapong claim to have originated in Borikhamxai Province, Laos.
Tai He - 10,000 people in Borikhamxai Province, Laos: in Viangthong and Khamkeut Districts; also in Pakkading and Pakxan Districts. Unclassified Tai language.
Tai Kaleun - 7,000 people mostly in Khamkeut District, Borikhamxai Province, Laos; also in Nakai District. 8,500 people in Thailand: the provinces of Mukdahan (Don Tan and Chanuman districts), Nakhon Phanom (Muang District) and parts of Sakhon Nakhon Province. The Tai Kaleung speak a Lao dialect.
Tai Khang - 5,600+ people in Xam-Tai District, Houaphan Province, Laos; also in Nongkhet District of Xiangkhoang Province, and Viangthong District of Borikhamxai Province. Unclassified Tai language.
Tai Kuan (Khouane) - 2,500 people in Viengthong District, Borikhamxai Province, Laos: near the banks of the Mouan River.
Tai Laan - 450 people in a few villages of Kham District, Xiangkhoang Province, Laos. Unclassified Tai language.
Tai Loi - 1,400 people in Namkham, Shan State, Burma; 500 people in Long District, Luang Namtha Province, Laos; possibly also in Xishuangbanna Prefecture, China, since some Tai Loi in Burma say they have relatives in China. Their language may be related to and probably also closely related to Palaung Pale.
Tai Men - 8,000 people in Borikhamxai Province, Laos: mostly in Khamkeut District, but also in Vienthong, Pakkading, and Pakxan Districts. They speak a Northern Tai language.
Tai Meuiy - 40,000+ people in Borikhamxai, Khammouan, Xiengkhouang, and Houaphan (just outside the town of Xam Neua) provinces of Laos. Their language is reportedly similar to Tai Dam and Tai Men.
Tai Nyo - 13,000 people in Pakkading District, Borikhamxai Province, Laos; 50,000 people in northeastern Thailand, where they are better known as Nyaw. Similar to Lao of Luang Prabang.
Tai Pao - 4,000 people in Viangthong, Khamkeut and Pakkading districts of Borikhamxai Province, Laos. They live near the Tai He and may be related to them. Unclassified Tai language.
Tai Peung - 1,000 people in Kham District, Xiengkhouang Province, Laos. They live near the Tai Laan and Tai Sam. Unclassified Tai language.
Tai Pong 傣棚 - perhaps as many as 100,000 people in along the Honghe River of southeastern, Yunnan, China, and possibly also in northern Vietnam. Subgroups include the Tai La, Tai You, and probably also Tai Ya (which includes Tai Ka and Tai Sai). Unclassified Tai language.
Tai Sam - 700 people in Kham District, Xiengkhuoang Province, Laos. Neighboring peoples include the Tai Peung and Tai Laan. Unclassified Tai language.
Tai Song - 45,000+ people in Phetchabun, Phitsanulok, Nakhon Sawan (Tha Tako District), Ratchaburi (Chom Bung District), Suphan Buri (Song Phinong District), Kanchanaburi, Chumphon and Nakhon, and Pathom (Muang District). Also called Lao Song. They are a subgroup of the Tai Dam.
Tai Wang - 10,000 people in several villages in Viraburi District, Savannakhet Province, Laos; 8,000 in and around the city of Phanna Nikhom, Sakhon Nakhon Province, Thailand. Their language is related to but distinct from Phutai.
Tai Yuan ('Northern Thai') - 6,000,000 people in Northern Thailand and possibly 10,000 people in Houayxay and Pha-Oudom districts of Bokeo Province, Luang Namtha District of Luang Namhta Province, Xai District of Oudomxai Province, and Xaignabouri District of Xaignabouri Province. They speak a Southwestern Tai language.
Tak Bai Thai - 24,000 people in southern Thailand (in Narathiwat, Pattani, and Yala provinces) and northern Malaysia. Their name comes from the town of Tak Bai in Narathiwat Province. Their language is highly different from nearby Southern Thai dialects, and may be related to the Sukkothai dialect further up north.
Yang - 5,000 people in Phongsaly, Luang Namtha, and Oudomxay provinces, Laos (Chazee 1998).
Kap Kè (‘gekko’ people) now refer to themselves as Nyo. The Nyo proper reside mostly along the Mekong between Hinboun and Pakxanh and also in Thailand. The Kap Kè claim they are the same as the Nyo of Ban Khammouane in Khamkeut District, Bolikhamsai province, Laos. Another Kap Kè group of about 40 households originally from Sop Khom has now resettled in Sop Phouan. This group claims to be from Ban Faan, about 1 kilometer from Sop Khom.
Phuk (sometimes pronounced without the final –k as Phu’) - According to themselves as well as other ethnic groups, the Phuk closely resemble the Kap Kè and originally came from nearby locations, referred to as phiang phuk and phiang Kap Kè. They were originally from the villages of Fane, Ka’an and Vong Khong.
Thay Bo - located on the Nakai plateau in central Laos, along the middle Hinboun River, east of the Kong Lo cave and the Phon Tiou tin mine, and in Ban Na Hat and near Na Pè, close to the Vietnamese border. Bo means ‘a mine,’ referring people who worked either in the salt mines on the Nakai Plateau, or at the tin mine. Many older generation people speak a Vietic language as well, apparently Maleng, as spoken in the village of Song Khone on the Nam Sot River, a main tributary of the Nam Theun, although this has not been verified.
Kha Bo - In 1996, the Bo of Sop Ma village reported that they were “born from the Kha,” a reference to their Vietic origins, and in that village there was intermarriage with the Maleng of Song Khone. They are distinct from the Thay Bo of Hinboun. The Kha Bo on the Nakai plateau speak Nyo, whereas nowadays the Thay Bo of Hinboun speak Lao or Kaleung. The Ahoe, original inhabitants of the northwestern part of the Nakai Plateau, had also been relocated to Hinboun during the Second War of Indochina, and returned to their homeland speaking Hinboun Nyo as a second language.
In Burma, there are also various Tai peoples that are often categorized as part of a larger Shan ethnicity (see Shan people#Tai groups).
In other parts of Asia, substantial Thai communities can be found in Japan, Taiwan and the United Arab Emirates.
The United States is home to a significant population of Thai, Lao, Tai Kao, Isan, Lu, Phutai, Tai Dam, Tay and Shan people. There are a significant number of Thai and Lao people living in Canada as well.
The most significant communities of Tai peoples in Europe are in the Lao communities of the United Kingdom, France, Germany and Switzerland, the Isan communities of the United Kingdom and Iceland, the Thai communities of Finland, Iceland and Norway, the Tai Dam and Tay communities of France, and the Southern Thai community of the United Kingdom.
There is a sizable Thai community in Australia, as well as a Northeastern Thai community in New Zealand.
In recent times, large numbers of Lao and Hmong have migrated to Argentina as refugees.
