Li Zaiyi (Chinese: 李載義) (July 18, 788 - June 4, 837), né Li Zaiyi (李再義, note different character of his later name), courtesy name Fanggu (方谷), formally the Prince of Wuwei (武威王), was a general of the Chinese Tang dynasty who, from 826 to 831, ruled Lulong Circuit (盧龍, headquartered in modern Beijing) in de facto independence from the imperial government as the circuit's military governor (Jiedushi), although he was respectful to Emperor Wenzong and participated in the imperial campaign against the rebel general Li Tongjie. After he was expelled in a mutiny by Yang Zhicheng, the imperial government continued to commission him as a military governor, and he served at two other circuits subsequently.