Jules Louis Prevost (June 20, 1863-September 2, 1937) was an American Episcopal missionary to Alaska, a linguist and translator, and a professor of the history of medicine at the Temple University School of Medicine.
Prevost studied at the Philadelphia Divinity School, receiving his B.D. degree in 1890, and was ordained to the diaconate by Bishop Ozi W. Whitaker. After ordination to the priesthood in 1891, he traveled to Fort Adams on the Yukon River in Alaska, arriving in August, 1891.
Prevost printed the first newspaper in the interior of Alaska, the Yukon Press, beginning on January 1, 1893. On furlough to the United States in 1894, he married Anna Louise Demonet and studied at the New York School of Pharmacy. He translated portions of the Book of Common Prayer into the Upper Koyukon language, along with hymns and other texts.
Prevost served as postmaster at Tanana, and left Alaska permanently in 1906. Following his return to the United States, Prevost served as rector of St. Ambrose's Church, Philadelphia, and received a degree in medicine from Temple University Medical School in 1909. He continued as a lecturer until 1929, when he accepted a call to St. Andrew's Church, Panama City, Florida.