Isaac Russell (1807-1844) was an early Mormon convert in Canada and served in the first mission of the Church to England.

Isaac Russell was born at Windy Haugh near Alston, England, April 13, 1807. In 1817 his family emigrated from England to Canada, settling in Little New York (Toronto). On June 25, 1829 Isaac married Mary Walton. He built a home in the Charleston Settlement (now Downsview, Ontario), and worked as a carpenter there. In 1836 Parley P. Pratt met and baptized Russell's sister, Isabella Russell Walton. After hearing Pratt preach the gospel in the Dawson home, Isaac and his family were baptized along with several others, including John Taylor, Joseph Fielding, and John Dawson. Russell and his family moved to Kirtland, Ohio, soon after baptism, and from 1837-1839 he served in the first mission to England in the company of Heber C. Kimball, Orson Hyde, Joseph Fielding, John Goodson, and John Snider.

On April 26, 1839, after their move to Far West, Missouri, Russell and all his family and relatives and many others (91 in total) were cut off from the Church by Sidney Rigdon. When the Saints left Far West, Russell, his family, and many others who were cut off, remained in Far West. Russell was imprisoned in the Richmond Jail for contempt of court, and was sold as a slave because he would not deny his religion. He was freed by a Mr. Raglan, but only after Russell insisted that he work for Mr. Raglan in exchange for the amount that Mr. Raglan had paid to set him free. Mr. Raglan lived in Ray County on the Woodward farm where Russell moved his family while paying off his debt. While working in the Crooked River Bottoms of the Missouri River, he contracted swamp fever and died, on September 25, 1844.