Hailin (Chinese: 海林; pinyin: Hǎilín) is a county-level city, part of Mudanjiang prefecture-level city, Heilongjiang province, northeast China. It has an area of 8,816 km², and a population of 440,000 (as reported in 2006). Ethnic groups include the majority Han Chinese as well as significant numbers of Manchu and ethnic Koreans.