Marriner Wood Merrill (25 September 1832 – 6 February 1906) an American pioneer and religious leader. He was a pioneering settler of the Cache Valley and a member of the Quorum of the Twelve Apostles of the Church of Jesus Christ of Latter-day Saints (LDS Church). With two business partners, Merrill built a gristmill. He also worked as a contractor in the construction of the Utah and Northern Railway and as a supervisor in its operation. Merrill also operated a large farm near Richmond. On 6 February 1906, Merrill died in his home in Richmond from Bright's disease. He is buried in Richmond.