Cao Fang (232–274), courtesy name Lanqing, was the third emperor of the state of Cao Wei during the Three Kingdoms period. He was an adopted son of Cao Rui, the second ruler of Wei. Cao Fang ruled from 239 to 254 as a nominal emperor before he was deposed by the regent Sima Shi, after which he became known as the "Prince of Qi". After the fall of Wei in 265, Cao Fang was conferred the title of "Duke of Shaoling" by Emperor Wu of the Jin Dynasty.