The Temple of the Eastern Peak in Beijing (simplified Chinese: 北京东岳庙; traditional Chinese: 北京東嶽廟; pinyin: Běijīng Dōngyuè Miào) is a Taoist temple in the Chaowai area, Chaoyang District, Beijing, China. The temple is dedicated to the Great Deity of the Eastern Peak (simplified Chinese: 东岳大帝; traditional Chinese: 東嶽大帝; pinyin: Dōngyuèdàdì). "Eastern Peak" is the cosmological name of Mount Tai, the easternmost and holiest of the Five Sacred Mountains of China. Founded during the Yuan dynasty, the Eastern Peak Temple is the largest temple of Zhengyi Taoism in Beijing and protected as a national cultural spot. The temple also hosts the Beijing Folk Customs Museum.