Hosea Garrett (November 26, 1800 – September 4, 1888) was an American clergyman, philanthropist, and university administrator. He is primarily known as one of the founders of Baylor University, where he was elected the first president pro tem of the University. He served as a member of the Board of Trustees for 42 years and President of the Board of Trustees for 35 years, as well as President of the Baptist State Convention of Texas, and Vice President of the Southern Baptist Convention.