松花江（汉语拼音转译：Songhua River、满语转译：Sungari River）是中国东北地区的一条河流，是黑龙江的最大支流。“松花江”源于满语：ᡠᠩᡤᠠᡵᡳ
ᡠᠯᠠ，转写：sunggari ula（汉音译“松阿里乌拉”），意为“天河”或“银河”（满语：ᠰᡠᠩᡤᠠᡵᡳ
ᠪᡳᡵᠠ，转写：sunggari bira）。

松花江在南北朝时被称为难水，辽金时是东北流直至鞑靼海峡的巨大河流名称（混同江），中华人民共和国建国后改为黑龙江支流。现为黑龙江右岸最大支流。

发源于长白山主峰白头山天池。由东南向西北流，在吉林省与黑龙江省交界处、松原市前郭尔罗斯县平凤乡嫩江村附近与嫩江汇合后，转向东北流，于同江附近入黑龙江。长2308千米，流域面积54.6万平方千米，仅次于长江与黄河。

The Songhua River (Chinese:松花江; pinyin:Sōnghuā Jiāng), also known as Haixi (Chinese:海西; pinyin:Hǎixī), the Sungari River (Manchu: , Sunggari Ula), and the Xingal, is a river in Northeast China, and is the largest tributary of the Heilong River (Amur), flowing about 1,434 kilometres (891 mi) from Changbai Mountains through Jilin and Heilongjiang provinces. The river drains 1,443,100 square kilometres (557,180 sq mi) of land, and has an annual discharge of 2,463 cubic metres per second (87,000 cu ft/s).