Jiryaku (治暦?) was a Japanese era name (年号,, nengō,?, lit. "year name") after Kōhei and before Enkyū. This period spanned the years from August 1065 through April 1069. The reigning emperors were Go-Reizei-tennō (後冷泉天皇?) and Go-Sanjō-tennō (後三条天皇?).
