Haeinsa (Korean: 해인사) is a Buddhist temple in Gayasan National Park, South Gyeongsang Province, South Korea. It is the head temple of the Jogye Order of Korean Seon Buddhism. Haeinsa is most notable for being the home of the Tripitaka Koreana, the whole of the Buddhist Scriptures carved onto 81,350 wooden printing blocks, which it has housed since 1398.
Haeinsa is one of the Three Jewels Temples, and represents Dharma or the Buddha’s teachings. It is still an active Seon practice center in modern times, and was the home temple of the influential Seon master Seongcheol, who died in 1993.