Kanjizaiji (観自在寺) is a Shingon Buddhist temple in Ainan-cho (愛南町), Minamiuwa District, Ehime, Japan. It is number 40 of the 88 temples in the Shikoku Pilgrimage. -Ji (寺) means temple in Japanese. Kanjizai (観自在) is the name of Avalokitesvara (観音, Kannon) which is used in the Heart Sutra (般若心経, Hannya-Shingyo). There are some events in each month and sometimes there are so many booths on the street. The small festival is called O-daishi-sama (御大師様) and it is held once around two months to celebrate the tie with Kūkai.