|Native to||People's Republic of China|
|Region||South Jiangsu province, North Zhejiang province, southeastern Anhui, and Shanghai. Linguistic exclave in Cangnan county in southern Zhejiang province.|
|(47 million cited 1987)|
|ISO 639-3||None (|
Taihu Wu (吳語太湖片) or Northern Wu (北部吳語) is a Wu Chinese language spoken over much of southern part of Jiangsu province, including Suzhou, Wuxi, Changzhou, the southern part of Nantong, Jingjiang and Danyang; the municipality of Shanghai; and the northern part of Zhejiang province, including Hangzhou, Shaoxing, Ningbo, Huzhou, and Jiaxing. A notable exception is the dialect of the town of Jinxiang, which is a linguistic exclave of Taihu Wu in Zhenan Min-speaking Cangnan county of Wenzhou prefecture in Zhejiang province. Used in regions around Taihu Lake and Hangzhou Bay, this group makes up the largest population among all Wu speakers. Taihu Wu dialects such as Shanghainese, Shaoxing and Ningbo are mutually intelligible even for L2 Taihu speakers.
Linguistic affinity has also been used as a tool for regional identity and politics in the Jiangbei and Jiangnan regions. While the city of Yangzhou was the center of trade, flourishing and prosperous, it was considered part of Jiangnan, which was known to be wealthy, even though Yangzhou was north of the Yangzi River. Once Yangzhou's wealth and prosperity were gone, it was then considered to be part of Jiangbei, the "backwater".
After Yangzhou was removed from Jiangnan, many of its residents switched from Jianghuai Mandarin, the dialect of Yangzhou, to Taihu Wu dialects. In Jiangnan itself, multiple subdialects of Wu competed for the position of prestige dialect.