Skip to content
Thai dialect

Isan

Also known as: Northeastern Thai, Lao-Isan

The Tai language of Thailand's Northeast region. Closer to Lao than to Central Thai; spoken by the largest non-Central-Thai population in the country.

Shareable facts

Want a Isan app?

Vote and we'll prioritise it. Top-voted dialects move up the roadmap. One vote per email.

We'll email you a confirmation link.

Frequently asked questions

What language is Isan?

Isan is a dialect of the Thai language.

Where is Isan spoken?

Isan is primarily spoken in Thailand.

Which region is Isan associated with?

Isan is part of the Southeast Asia region on DialectAtlas.

Is Isan known by other names?

Yes — Isan is also referred to as Northeastern Thai, Lao-Isan.

What are the other dialects of Thai?

Thai also includes Central Thai, Lanna. Each variety has its own vocabulary, pronunciation, and cultural context.

Other Thai dialects

See on the atlas →
Lanna

Northern Thai · Kham Mueang

The Tai language of Thailand's Northern region around Chiang Mai. Carries its own historical script and a literary tradition tied to the former Lanna kingdom.

Nearby dialects

See on the atlas →
Lao

172 km away

A Tai-Kadai language and the official language of Laos. Closely related to Thai Isan; written in a script derived from the same source as Thai but distinct in several letters and vowel signs.

Mlabri

337 km away

A Khmuic (Austroasiatic) language of formerly nomadic hunter-gatherers in the highlands of Nan and Phrae provinces, northern Thailand, and adjacent Laos. Roughly 100–300 speakers; its numeral system allows only one and two to modify nouns, and it lacks the register contrasts typical of related languages.

Lanna

484 km away

The Tai language of Thailand's Northern region around Chiang Mai. Carries its own historical script and a literary tradition tied to the former Lanna kingdom.

Huế Vietnamese

509 km away

The Central Vietnamese variety of Huế. Preserves a distinctive five-tone system and lexicon rooted in the former Nguyễn-dynasty imperial capital.

Mon

555 km away

An Austroasiatic language of Lower Burma and adjacent Thailand. Once the dominant cultural language of mainland Southeast Asia, displaced over centuries by Burmese and Thai expansion.

Continue exploring