Ola Elizabeth Winslow (January 5, 1885 in Grant City, Missouri – September 27, 1977 in Damariscotta, Maine) was an American historian, biographer, and educator. She won a Pulitzer Prize in 1941 for her biography of Jonathan Edwards, an 18th-century American theologian whose basic writings she edited for Signet Classics.
Born in Missouri, Winslow was an instructor at College of the Pacific from 1909 to 1914, when she earned a master's degree from Stanford University. She was professor of English at Goucher College in Baltimore (1914–1944) and at Wellesley College (1944–1977, emeritus after 1950).Winslow earned a Ph.D. from the University of Chicago in 1922 with a thesis that was later published as a book with the title Low Comedy as a Structural Element in English Drama from the Beginnings to 1642.Winslow died in Maine at age 92.