Moon Lovers: Scarlet Heart Ryeo

 Moon Lovers: Scarlet Heart Ryeo (: 달의 연인 - 보보경심 려; : 달의戀人－步步驚心 麗; : Dar-ui yeon-in - Bobogyeongsim ryeo; : Tar-ŭi yŏnin - Popokyŏngsim ryŏ) is a based on the Chinese novel . It aired from August 29, 2016 to November 1, 2016 on every Monday and Tuesday at 22:00 () for 20 episodes.

Despite its ensemble cast, extensive publicity and US$13 million production budget, the series received criticisms for its screenplay, direction and performances. It did, however, perform well overseas. The drama has reportedly been sold for more than $400,000 per episode to the Chinese broadcasting station Youku, totaling over $8 million and thus became the most expensive K-drama ever sold. The record was beaten a few months later by .