Wusong (simplified Chinese: 吴淞; traditional Chinese: 吳淞; pinyin: Wúsōng), formerly romanized as Woosung, is a subdistrict of Baoshan in northern Shanghai. Prior to the city's expansion, it was a separate port town located 14 miles (23 km) down the Huangpu River from Shanghai's urban core.
The Battle of Woosung occurred on 16 June 1842 between British and Chinese forces during the First Opium War. It was the site of China's first telegraph wires and first railroad, both running to Shanghai along what is today the route of the Shanghai Metro's elevated Line 3. Tongji University was founded here in 1909. During World War II, this town was the site of an internment camp for marines captured on Wake Island. Wusong became a district of Shanghai, before it was abolished in 1964 and incorporated into Baoshan District.
Coordinates: 31°22′30″N 121°30′0″E / 31.37500°N 121.50000°E