Sidney Branton Sperry (December 26, 1895 – September 4, 1977) was one of three scholars who were members of the Church of Jesus Christ of Latter-day Saints (LDS Church) who began the scholarly and systematic study of the Book of Mormon in the mid-20th century — the other two being John L. Sorenson and Hugh W. Nibley. Sperry was also a leading Latter-day Saint scholar of the Bible.