Suzhou, formerly romanized as Soochow, is a major city located in southeastern Jiangsu Province of East China, about 100 km (62 mi) northwest of Shanghai. It is a major economic center and focal point of trade and commerce, and the second largest city in the province after its capital Nanjing. The city is situated on the lower reaches of the Yangtze River and the shores of Lake Tai and belongs to the Yangtze River Deltaregion.

Founded in 514 BC, Suzhou has over 2,500 years of history, with an abundant display of relics and sites of historical interest. At around 100 AD, during the Eastern Han Dynasty, it became one of the ten largest cities in the world mostly due to emigration from Northern China. Since the 10th-century Song Dynasty, it has been an important commercial center of China. During the Ming and Qing Dynasty, Suzhou was a national economic, cultural, and commercial center, as well as the largest non-capital city in the world, until the 1860 Taiping Rebellion.

The city's canals, stone bridges, pagodas, and meticulously designed gardens have contributed to its status as one of the top tourist attractions in China. The Classical Gardens of Suzhou were added to the list of the UNESCO World Heritage Sites in 1997 and 2000. Suzhou is often dubbed the "Venice of the East" or "Venice of China".