Dou Gu (Chinese: 竇固; Wade–Giles: Tou Ku; died 88 AD), born in Xianyang, was a Chinese military general during the Eastern Han dynasty who fought in the Battle of Yiwulu in 73. Shortly after the battle, Dou Gu sent two of his generals, Ban Chao and Guo Xun, on a diplomatic expedition to the Western Regions.

• Fan Ye et al., Hou Hanshu (Book of the Later Han). Beijing: Zhonghua Shuju, 1965.
• Sima Guang, comp. Zizhi Tongjian. Beijing: Zhonghua Shuju, 1956.