Gunchen Chanyu (aka Junchen Chinese: 單于, 軍臣; r. 161–126 BCE), whose proper name is unknown, was a Chanyu of the Xiongnu, the successor to Laoshang Chanyu (老上單于). During his long reign Gunchen Chanyu outlived the Han emperors Wendi Liu Heng 文帝劉恆 (r. 180–157 BC, Hyao Wyn Huan-di in Bichurin), Jingdi Liu Qi 景帝 劉啟 (r. 157–141 BC, Hyao-Jing-di in Bichurin), and died during the reign of the Han emperor Wudi Liu Che 武帝 劉徹 (r. 141–87 BC).