Sylvester Quayle Cannon was an American businessman, engineer, and religious leader who served as the sixth presiding bishop of the Church of Jesus Christ of Latter-day Saints from 1925 to 1938 and a member of church's Quorum of the Twelve Apostles from 1939 until his death. He was the son of George Q. Cannon, an apostle and member of the church's First Presidency.

The Presiding Bishop of the Church of Jesus Christ of Latter-day Saints is a priesthood calling with church-wide authority. The Presiding Bishop is the highest leadership position within the church's Aaronic priesthood, although most of the work in this area is delegated to the church's Young Men general presidency.