Leon R. Hartshorn (January 16, 1929 – August 11, 2015) was a religion professor at Brigham Young University (BYU) and an author of many books. Most of his books were the collections of stories about leaders or members of the Church of Jesus Christ of Latter-day Saints (LDS Church). In the LDS Church, Hartshorn has been a bishop and the president of the Missouri St. Louis Mission.