William Wallace Cluff (March 8, 1832 – August 21, 1915) was an American Latter-day Saint missionary and leader in the 19th century, and a member of the Utah Territorial Legislature.

In 1837, they moved west, intending to go to Missouri, but were delayed by illness and stopped in Springfield, Illinois.

He arrived in Utah in 1850 in a company led by Edward Hunter (Latter-day Saint), and in 1853, he served in the Nauvoo Legion during the Walker War.

[1][2] On reaching Utah, Cluff returned to his home in Provo but was soon sent to Salt Lake City, where he was stationed in the Beehive House—along with John T. Caine, Horace K. Whitney, and James Ferguson—with orders to watch Johnston’s Army as it moved through the city and to burn the place if there were indications the peace plan was not being followed.

[2] Cluff then enrolled in the Salt Lake Academy, co-taught by Orson Pratt and James T. Cobb, until he was called on a new mission.

On October 24, 1863, he married Ann Whipple in Pine Valley, Washington County, Utah.

In 1864, Cluff went to Sandwich Islands (Hawaii) with Lorenzo Snow, Joseph F. Smith, Ezra T. Benson, and Alma T. Smith to respond to messages from Solomona and other local elders that Walter M. Gibson, who had been sent by Brigham Young on a mission to Asia and the Pacific islands, was committing irregularities such as selling the priesthood and establishing a new quorum of apostles.

Cluff found and dragged Snow’s body to shore and gave him resuscitation after working with him for several minutes.