Huizhou (Chinese: 徽州话), or the Hui dialect (Chinese: 徽语), is a group of Sinitic languages spoken in and around the historical region of Huizhou (for which it is named), in about ten or so mountainous counties in southern Anhui, plus a few more in neighbouring Zhejiang and Jiangxi.

Although the Hui area is small compared with other Chinese dialect groups, it displays a very high degree of internal variation, and the lect is also situated near many mutually unintelligible varieties, making its classification difficult.

[4] The Chinese Academy of Social Sciences supported the separation of Huizhou from Lower Yangtze Mandarin in 1987.

Large numbers of merchants from Huizhou lived in Yangzhou and effectively were responsible for keeping the town afloat.

For example, Likou in Qimen County has /fũːmɛ̃/ for 飯 ("rice") (Standard Chinese /fan/), with the /m/ appearing directly as a result of the lengthened, nasalized /ũː/.