Feltus Wylie Sypher (December 12, 1905 – August 14, 1987[1]) was an American non-fiction writer and professor.
He received a master's degree from Tufts University in 1929 and became an instructor at Simmons College.
In 1932, he received his second master's degree from Harvard University.
Sypher taught summers at the University of Wisconsin, the University of Minnesota, and in the 1968 summer session he became the first Robert Frost Professor of Literature at the Bread Loaf School of English at Middlebury College, where he had taught since 1957.
He was twice awarded a Guggenheim fellowship for research in the theory of fine arts and literature.