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Emperor Kōmyō (光明天皇, Kōmyō Tennō) (11 January 1322 – 26 July 1380) was the second of the Emperors of Northern Court, although he was the first to be supported by the Ashikaga Bakufu. According to pre-Meiji scholars, his reign spanned the years from 1336 through 1348.
On 18 November 1348, he abdicated in favor of the eldest son of his older brother, the former claimant to the throne Emperor Kōgon, who became Emperor Sukō.
In April 1352, taking advantage of the Kan'ō Disturbance, a family feud in the Ashikaga clan, the Southern Emperor Emperor Go-Murakami entered Kyoto, capturing it and carrying away Kōmyō along with Emperor Kōgon, Emperor Sukō, and the Crown Prince Tadahito. They all ended up finally in Anau, the location of the Southern Court.