Elizabeth "Betty" Gwyn Caskey (20 May 1910 – January 1994) was a Canadian-American classical scholar, teacher, and archaeologist, known for her work in the excavations at Lerna and Kea, which are of importance to Greek prehistory. As an archaeologist she worked with her husband, Jack Caskey, on excavations where she supervised the trenches of every annual dig and their fortifications. She also wrote summaries of the excavations. After her marriage ended she excavated at Pylos. She was a Professor of Classics at Randolph-Macon College who became Professor Emeritus in 1981.