The Mienic or Yao languages are spoken by the Yao people of China, Vietnam, Laos, and Thailand.

Some of the Yao peoples speak Hmongic languages (Miao); these are called Bunu. A small population of Yao people in Jinxiu Yao Autonomous County (金秀瑶族自治县) in eastern Guangxi speak a Tai-Kadai language called Lakkia. Other Yao peoples speak various Sinitic (Chinese) language varieties.

Mienic is one of the primary branches of the Hmong–Mien language family, with the other being Hmongic.

Martha Ratliff (2010:3) proposed the following classification:

Strecker 1987, followed (with the addition of Moxi) by Matisoff 2001, proposed the following, with some of the more divergent varieties as additional languages:

Luang-Thongkum (1993:170) proposes the following classification for Mjuenic, a proposed branch consisting of the Mien, Mun, and Muen (Biao Mon) languages. The classifications of Biao Min and Dzao Min are not addressed.

Mao Zongwu (2004) classifies the Mienic languages varieties of China as follows. Data points studied in Mao (2004) are also listed for each dialect.

A Mienic lect called bjau2 mwan2 ("Biao Man 标曼"), related to Mien of Changping and Luoxiang, is spoken in Liuchong 六冲, Qiaoting Township 桥亭乡, Pingle County 平乐县, Guangxi (Tang 1994); another "Biao Man 标曼" dialect is spoken in Dongpingdong 东坪洞 (Tang 1994). There are about 10,000 speakers in Mengshan, Lipu, Pingle, and Zhaoping counties.