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Tai-Kadai · ISO 639-3 lao · lo

Lao Language ລາວ

Lao is a Tai-Kadai language spoken by about 5.2 million people in 1 country. It is an official language of Laos. It is written in the Lao script.

5.2 million
Speakers · #179 in the world
1
Countries where it is spoken
1
Countries where it is official
Safe
Endangerment status

Where Lao is spoken

  • Official language
  • Regional official
  • Spoken by 10%+
  • 1–10%
  • Smaller communities

Countries that speak Lao

Flag of Laos
Laos Official
5.5 million · 69%

Language family

  1. Tai-Kadai
  2. Kam-Tai
  3. Daic-Beic
  4. Daic
  5. Central-Southwestern Tai
  6. Wenma-Southwestern Tai
  7. Sapa-Southwestern Tai
  8. Southwestern Tai
  9. Southwestern Thai PH
  10. Lao-Thai
  11. Lao

Writing system

Lao script

Related languages

About the Lao language

Lao (ລາວ) is spoken by about 5.2 million people, which makes it the 179th most spoken language in the world — just behind Pedi (5.3 million) and ahead of Halh Mongolian (5.2 million). It belongs to the Tai-Kadai language family and, more precisely, to the Lao-Thai group within the Daic-Beic branch.

Where is Lao spoken?

Lao is used in 1 country. The largest communities live in Laos (5.5 million). More than half of the population speaks it in Laos — the places where travellers will hear it everywhere.

Lao is an official language in 1 country: Laos.

Writing system and status

Lao is written in the Lao script. It is a safe, widely transmitted language: children still learn it at home as their first language.

Its closest relatives in the same branch of the family are Thai, Northeastern Thai, Southern Thai, Northern Thai, Shan, Tai Dam and 2 more.

ISO codes: ISO 639-1 lo, ISO 639-3 lao.

Frequently asked questions about Lao

How many people speak Lao?

About 5.2 million people — #179 among the world's languages.

Where is Lao spoken?

Mostly in Laos (5.5 million).

In which countries is Lao an official language?

Laos.

What language family does Lao belong to?

Lao belongs to the Tai-Kadai family: Tai-Kadai › Kam-Tai › Daic-Beic › Daic › Central-Southwestern Tai › Wenma-Southwestern Tai › Sapa-Southwestern Tai › Southwestern Tai › Southwestern Thai PH › Lao-Thai.

What is Lao called in Lao?

Its speakers call it ລາວ.

Is Lao an endangered language?

No — Lao is not endangered.

Data: Languages of the World dataset (MIT) — ISO 639-3, Glottolog (CC BY 4.0), Unicode CLDR, Google LinguaMeta (CC BY 4.0) and Wikidata; country lists: samayo/country-json (MIT). Speaker numbers include first- and second-language speakers where sources report them.