Kemmu (建武) was a Japanese era name (年号, nengō, lit. year name) of the Northern Court during the Nanboku-chō period after Shōkyō and before Ryakuō. This period started in January 1334 and ended in August 1338 in the Northern Court, but it lasted until only February 1336 in the Southern Court. The pretender in Kyoto was Emperor Kōmyō (光明天皇, Kōmyō-tennō). Kōmyō's Southern Court rival in Yoshino during this time was Emperor Go-Daigo (後醍醐天皇, Go-Diago-tennō).