Somdet Phra Ariyavangsagatayana, also known as Ariyavangsagatayana VI, was the 16th Somdet Phra Sangharaja 1965–1971. He was born in 1897 as Juan Sirisom in Ratchaburi Province. He also served as the abbot of Wat Makut until he died in 1971. His predecessor was Ariyavangsagatayana and his successor was Ariyavangsagatayana.