The great sugi of Kayano is a Cryptomeria (Sugi) tree at Yamanaka Onsen in Kaga, Ishikawa Prefecture, Japan. One of the four trees believed to be sacred in the precincts of the Sugawara Shrine, it has received the distinction of designation as a Special Natural Monument from the Agency for Cultural Affairs of Japan.
The tree stands 54.8 m tall. At the base, it measures 11.5 m in circumference and 3.41 m across. At chest height, it is 9.6 m around and 3.0 m across. The tree splits into two trunks 4.9 m above ground level. In 1928, Professor Miyoshi Manabu of Tokyo Imperial University estimated the age of the tree to be 2,300 years. The other three are 8.8 m, 6.65 m and 7.8 m at chest height and natural monument of Ishikawa Prefecture.
Jōmon period artifacts unearthed near the shrine establish that human habitation predates recorded history. Warriors including members of the Taira, Minamoto, Asakura, and the Togashi clan are said to have come to the shrine. In 1947, on the occasion of the second National Sports Festival of Japan (held in Ishikawa Prefecture), Emperor Shōwa (then known as Hirohito) visited the great sugi.