Shitennō-ji is a Buddhist temple in Ōsaka, Japan. It is also known as Arahaka-ji, Nanba-ji, or Mitsu-ji. The temple is sometimes regarded as the first Buddhist and oldest officially-administered temple in Japan, although the temple complex and buildings have been rebuilt over the centuries, with the last reconstruction taking place in 1963. It is the head temple of the Wa Sect of Buddhism.