- Language: Lopnor Uyghur
- Alternate names: Lopluk, 維吾爾語羅布話
- Language code: duigl
- Language family: Turkic, Common Turkic, Turkestan Turkic, Uyghur-Uzbek, Modern Uyghur-Uzbek, Uighur-Ili
- Dialect of: Uyghur
- Number of speakers: 24000
The Lopnor dialect is considered one of the three regional varieties of Uyghur in the Xinjiang Uyghur Autonomous Region. It is spoken by approximately less than 0.5% of the Uyghur population. Nevertheless, it occupies a special position not only among the regional varieties of Uyghur, but also in comparative research on Turkic languages. It also provides a crucial data for language contact in this area. The Lopnor dialect displays a set of unique phonological, morphological and syntactic features alien to other varieties of Uyghur. Its lexicon contains exceptional items relating to fishing and some rare Old Turkic words and copies (loan words) from Mongolian. Thus, some scholar consider it as an independent language rather than a variety of Uyghur.