Eiwa (永和) was a Japanese era name (年号, nengō, lit. year name) of the Northern Court during the Nanboku-chō period after Ōan and before Kōryaku. This period started in February 1375[1] and ended in March 1379.[2] The pretender in Kyoto was Emperor Go-En'yū (後円融天皇, Go-En'yū-tennō)[3] Go-En'yū's Southern Court rival in Yoshino during this time was Emperor Chōkei (長慶天皇, Chōkei-tennō).[4]