An endangered language is a language that is at risk of falling out of use, generally because it has few surviving speakers. If it loses all of its native speakers, it becomes a dead language. A language may be endangered in one area but show signs of revitalisation in another, as with the Irish language. The United Nations Educational, Scientific and Cultural Organization defines five levels of language endangerment between "safe" (not endangered) and "extinct": The list below includes the findings from the third edition of Atlas of the World's Languages in Danger (2010; formerly the Red Book of Endangered Languages), as well as the online edition of the aforementioned publication, both published by UNESCO.

Afghanistan

Armenia

Azerbaijan

Bangladesh

Bhutan

Burma (Myanmar)

Cambodia

China

(Note: Taiwan area is not included in the list above. Related information is in section Taiwan.)

Cyprus

East Timor

Georgia

India

Indonesia

Iran

Iraq

Israel

Japan

Jordan

Kazakhstan

Korea

Kyrgyzstan

Laos

Lebanon

Malaysia

Mongolia

Nepal

Oman

Pakistan

Palestine

Philippines

Russia

Sri Lanka

Syria

Taiwan

Tajikistan

Thailand

Turkey

Turkmenistan

Uzbekistan

Vietnam

Yemen