John Riggs Murdock (September 13, 1826 – November 12, 1913) was the leader of the most Mormon pioneer down-and-back companies in Latter-day Saint history, leading ox-drawn wagon trains that carried both merchandise and passengers "down and back" from Missouri to Utah.The son of John Murdock, he not only led several down-and-back companies but also served several missions in the eastern United States.
He was also a prominent leader of the church in Beaver, Utah.