Chisan-ha (智山派) or Chisan is a Japanese sect of Shingon Buddhism. Among the other sects of Shingon Buddhism is Buzan-ha. It is headquartered in Chishaku-in (temple) in Kyoto. Naritasan Shinshōji Temple in Narita is also an important temple and was founded in 940. Chisan-ha belongs to Tantric Buddhism.
References
Shingon-shū Chizan-ha Wikipedia(Text) CC BY-SA