Cao Teng

Cao Teng
曹騰
Empress's Chamberlain (大長秋)
In office
c.146–?
MonarchEmperor Huan of Han
Central Regular Attendant (中常侍)
In office
126 (126)  146 (146)
MonarchEmperor Shun of Han
Personal details
BornUnknown
Bozhou, Anhui
Diedc. late 150s
SpouseLady Wu
Children
OccupationEunuch, official
Courtesy nameJixing (季興)
PeerageMarquis of Fei Village (費亭侯)
Posthumous name
Emperor Gao of Wei (魏高帝)

Cao Teng (died c. late 150s), courtesy name Jixing, was a eunuch who lived during the Eastern Han dynasty of China. He served four Han emperors (Shun, Chong, Zhi, and Huan). Through his adopted son Cao Song, he was the grandfather of Cao Cao, who laid the foundations for the state of Cao Wei in the Three Kingdoms period. On 3 August 229, during the reign of Cao Cao's grandson Cao Rui, Cao Teng was posthumously honoured as "Emperor Gao of Wei" (魏高帝), becoming the only eunuch in Chinese officialdom to have this honor.