Aejang of Silla (788–809) (r. 800–809) was the 40th ruler of the Korean kingdom of Silla. He was the eldest son of King Soseong and Queen Gyehwa. He married a lady of the Pak clan.
In 802, Aejang had the great temple of Haeinsa built on Gayasan.[1] In 803, he formed an alliance with Wa. In 806, he forbade the building of new temples. In 809, he was slain along with his brother Chemyeong by his uncle Kim Eon-seung, who had been regent and took the throne for himself.[2]