He Yan (Chinese:何晏; pinyin:Hé Yàn) (c. 195–249), courtesy name Pingshu (Chinese:平叔; pinyin:Píng Shū), was a politician and prominent philosopher of Wei (220–265), one of the Three Kingdoms. He was the grandson of the Han general He Jin and, after his mother was taken as a concubine by Cao Cao, was raised with the Wei royal family. He gained a reputation for intelligence and scholarship at an early age, but he was unpopular and criticized for being arrogant and dissolute. He was rejected for government positions by both Emperors Cao Pi and Cao Rui, but became a powerful minister during the rule of Cao Shuang. When the Sima family took control of the government in a coup d'etat in 249, He was executed along with all the other officials loyal to Cao.