Jōzai-ji is a Buddhist temple of the Nichiren sect in Gifu, Gifu Prefecture, Japan. Its formal name is Shūrinzan Jōzai-ji. Starting with Saitō Dōsan, Jōzai-ji served as the family temple for the Saitō family for three generations, which included his son, Saitō Yoshitatsu, and his grandson, Saitō Tokugen.