Frederick Augustus Rauch [in Germany, Friedrich August Rauch] (27 July 1806, Hesse-Darmstadt - 2 March 1841, Mercersburg, Pennsylvania) was an educator and the founding president of Marshall College. He was a professor of systematic theology and is often credited as the originator of Mercersburg Theology, although Philip Schaff and John Williamson Nevin were more integral in the development of its views.