Oroqen (also known as Orochon, Oronchon, Olunchun, Elunchun, Ulunchun) is a Northern Tungusic language spoken in the People's Republic of China. Dialects are Gankui and Heilongjiang. Gankui is the standard dialect. It is spoken by the Oroqen people of Inner Mongolia (predominantly the Oroqin Autonomous Banner) and Heilongjiang in Northeast China.
Currently, the Oroqen language is still unwritten. However, the majority of the Oroqen are capable of reading and writing Chinese and some can also speak the Daur language.