The Old City of Shanghai, also formerly known as the Chinese city, is the traditional urban core of Shanghai. Its boundary was formerly defined by a defensive wall. The Old City was the county seat for the old county of Shanghai. With the advent of foreign concessions in Shanghai, the Old City became just one part of Shanghai's urban core, but continued for decades to be the seat of the Chinese authority in Shanghai. Notable features include the City God Temple, which is located in the center of the Old City and is connected to the Yuyuan Garden. With the exception of two short sections, the walls were demolished in 1912, and a broad circular avenue built over the former wall and moat: the southern half was named the "Zhonghua Road" and the northern half the "Minguo Road".

Small Swords Society or Small Sword Society was a political and military organisation active in Shanghai, China, and neighbouring areas amid the Taiping Rebellion, between about 1840 and 1855. Members of the society, rebelling against the Qing dynasty, occupied old Shanghai and many of the surrounding villages. Chinese gentry and merchants took refuge in the British and French concessions, which were regarded as the only safe places. The rebellion was suppressed and the society expelled from Shanghai in February 1855.