Rey Lucero Pratt (October 11, 1878 – April 14, 1931) served the Church of Jesus Christ of Latter-day Saints (LDS Church) for 23 years as president of its Mexican Mission and for six years as a general authority. Pratt helped establish the church in Mexico and among Spanish-speaking populations in the United States and Argentina. He also translated LDS Church materials into Spanish, wrote magazine articles, and spoke regularly at general conference. Pratt has at times been called the father of the Mexican Mission.