Ralph Dorn Hetzel (December 31, 1882 – October 3, 1947) was the tenth President of the Pennsylvania State University, serving from 1927 until 1947. Prior to that he served as the President of the New Hampshire College, which became the University of New Hampshire in 1923, under Hetzel's tenure. The Hetzel Union Building (HUB) at Penn State University and Hetzel St. in State College are named for Hetzel. Hetzel Hall, a dormitory at the University of New Hampshire, is named after him as well.