Wen Jiang (Chinese: 文姜; died 673 BC) was a princess of the State of Qi and duchess of the State of Lu during the Spring and Autumn period of ancient China. She was a daughter of Duke Xi of Qi and sister of Duke Xiang and Duke Huan of Qi. She was the main wife of Duke Huan of Lu and mother of Duke Zhuang of Lu. She is best known for having an incestuous relationship with her brother Duke Xiang, who had her husband murdered. Her clan name was Jiang (姜) and Wen was her posthumous title.