Zhou Dewei (周德威) (died January 28, 919), courtesy name Zhenyuan (鎮遠), nickname Yangwu (陽五), was a major general of the Chinese Five Dynasties and Ten Kingdoms period state Jin (predecessor state to Later Tang).
It is not known when Zhou Dewei was born, but it is known that he was from Mayi (馬邑, in modern Shuozhou, Shanxi). He started his service in the late Tang Dynasty under Li Keyong the military governor of Hedong Circuit (河東, headquartered in modern Taiyuan, Shanxi) as a cavalry officer. He was said to be brave, intelligent, and capable in horsemanship and archery. As he grew up on the northern border, it was said that he gained the experience of watching the dust clouds created by cavalry and being able to judge the strength of the force that was proceeding. During the Qianning era (894-898) of Emperor Zhaozong of Tang, he became the commander of Tielin Base (鐵林軍). During Li Keyong's campaign against Wang Xingyu the military governor of Jingnan Circuit (靜難, headquartered in modern Xianyang, Shaanxi), Zhou had accomplishments and was made the deputy commander of Li Keyong's headquarter guard corps.
Later in 898, when Li Keyong sent his adoptive nephew Li Sizhao and Zhou to try to recover three prefectures east of the Taihang Mountains that he had previously lost to his archenemy Zhu Quanzhong the military governor of Xuanwu Circuit (宣武, headquartered in modern Kaifeng, Henan) (Xing (邢州, in modern Xingtai, Hebei), Ci (磁州, in modern Handan, Hebei), and Ming (洺州, also in modern Handan)). However, they were defeated by Zhu's general Ge Congzhou, who subsequently cut off their escape path back into the Taihang. It was due to the effort of Li Keyong's adoptive son Li Siyuan in fighting through Ge's blockade that the Hedong army was able to escape.