Harbin is a sub-provincial city and the provincial capital of Heilongjiang province, People's Republic of China. It is the largest city of Heilongjiang, as well as being the city with the second-largest urban population and largest metropolitan population in Northeast China. Harbin has direct jurisdiction over nine metropolitan districts, two county-level cities and seven counties, and is the eighth most populous Chinese city according to the 2020 census. The built-up area of Harbin had 5,841,929 inhabitants, while the total metropolitan population was up to 10,009,854, making it one of the 100 largest urban areas in the world.

Heilongjiang is a province in northeast China. It is the northernmost and easternmost province of the country and contains China's northernmost point and easternmost point.