William Whitaker Taylor (September 11, 1853 – August 1, 1884) was a member of the Utah Territorial Legislature, member of the Presidency of the Seventy in the Church of Jesus Christ of Latter-day Saints (LDS Church), and a son of LDS Church president John Taylor. He was a half brother to John W. Taylor, a member of the Quorum of the Twelve Apostles who was dropped from the body and excommunicated for refusing to give up plural marriage, and a brother-in-law to George Q. Cannon.