Bunna
, also romanized as Bunwa, was a Japanese era name (年号, nengō, lit. year name) of the Northern Court during the Nanboku-chō period after Kannō and before Enbun. This period started in September 1352 and ended in March 1356.  The pretender in Kyoto was .  Go-Kōgon's Southern Court rival in Yoshino during this time-frame was .