Meiwa(明和) was a Japanese era name(年号,,nengō,, lit. "year name") after Hōreki and before An'ei. This period spanned the years from June 1764 through November 1772. The reigning empress and emperor were Go-Sakuramachi-tennō(后桜町天皇) and Go-Momozono-tennō(后桃园天皇).