Frederick Augustus Porter Barnard (May 5, 1809 – April 27, 1889) was an American academic and educator who served as the 10th President of Columbia University. Born in Sheffield, Massachusetts, he graduated from Yale University in 1828 and served in a succession of academic appointments, including as Chancellor of the University of Mississippi from 1856 to 1861. He assumed office as President of Columbia University in 1864, where he presided over a series of improvements to the university until his death in 1889. He was also known as an author of academic texts.
He was born on May 5, 1809, in Sheffield, Massachusetts. His brother, John G. Barnard, was a career officer in the U.S. Army who served as the superintendent of the United States Military Academy and later as a general in the Union Army during the American Civil War. Barnard had a hereditary form of deafness that intensified in his later years, along with his brother and most of his family.