The foreign concessions in Tianjin were concession territories ceded by Qing China to a number of European countries, the United States and Japan within the city of Tianjin. There were altogether nine foreign concessions in old Tianjin on the eve of World War II. These concessions also contributed to the rapid development of Tianjin from the early to mid-20th century. The first foreign concessions in Tianjin were granted in 1860. By 1943, all the foreign concessions, except the Japanese concession, had ceased to exist de facto.

Tianjin is a municipality and metropolis in Northern China on the shore of the Bohai Sea. As such, it is not part of a province of China. It is one of the nine national central cities in Mainland China, with a total population of 13,866,009 inhabitants at the time of the 2020 Chinese census. Its metropolitan area, which is made up of 12 central districts, was home to 11,165,706 inhabitants and is also the world's 29th-largest agglomeration and 11th-most populous city proper.