Li Zhongchen (Chinese: 李忠臣) (716 – July 8, 784), né Dong Qin (董秦), was a general of the Chinese dynasty Tang Dynasty who was known, for most of his career, as both a supporter of the imperial cause but also a corrupt and violent military governor (Jiedushi). He was later expelled by his own army and, because of his service to imperial causes, kept by Emperor Daizong and Emperor Dezong as an official at the Tang capital Chang'an. In 783, he joined Zhu Ci's rebel Qin state, and after Zhu's defeat in 784 was captured and executed.