Changzhou dialect (Simplified Chinese: 常州话; Traditional Chinese: 常州話; Pinyin: Chángzhōu huà), sometimes called Changzhounese, is a dialect of Wu, a Sino-Tibetan language family, and belongs to the Taihu dialect group. It is spoken in the city of Changzhou and surrounding areas in Jiangsu province of China. It has many similarities with the Shanghainese and Suzhou dialect. It is not at all mutually intelligible with Mandarin, China's official language. It is much more closely related to the neighboring Wuxi dialect with which it is mostly mutually intelligible.