Iu Mien
| Nationality Classification | 瑶族 Mien (Yao) |
|---|---|
| Language or Dialect Name (Chinese) | 勉语勉-金方言优勉土语 |
| Language or Dialect Name (English) | Iu Mien |
| ISO 639-3 Code | ium |
| Language Stock Classification | 苗瑶语族 Hmong-Mien |
| Primary Province or Region | 广西壮族自治区 Guangxi Zhuang Autonomous Region |
| Location (in China) | Guangxi Zhuang Autonomous Region (31 counties/cities): Yangshuo, Lingui, Guanyang, Ziyuan, Xing'an, Longsheng, Gongcheng, Yongfu, Luzhai, Lipu, Mengshen, Pingle, Jinxiu, Yishan, Rong'an, Rongshui, Luocheng, Huanjiang, Shanglin, Xincheng, Laibin, Baise, Napo, Lingyun, Tianlin, Cangwu, Hezhou, Fuchuan, Zhaoping, Fangcheng, Shangsi
; Guangdong Province (11 counties/cities): Yingde, Lechang, Shixing, Qujiang, Renhua, Wengyuan, Ruyuan, Liannan, Lianshan, Yangshan, Yangchun; Yunnan Province (9 counties/cities): Hekou, Jinping, Honghe, Mengla, Malipo, Maguan, Gangnan, Funing, Wenshan; Guizhou Province (7 counties/cities): Rongjiang, Congjiang, Sandu, Danzhai, Leishan, Zhenfeng, Luodian; Jiangxi Province: Quannan and Shanggao counties; Hunan Province (21 counties/cities): Jianghua, Yongzhou, Shuangpai, Xintian, Changning, Daoxian, Lanshan, Lingxian, Ningyuan, Jiangyong, Dong'an, Chenzhou, Zixing, Lingwu, Guiyang, Xinning, Yizhang, Chengbu, Qiyang, Chenxi, Yanling County (in Longzha Yao District). |
| Estimated Speaker Population (in China) | 535,000 |
| Speaker Population Year of Estimate | 2004 |