Michael J. Eagen (May 9, 1907 – July 7, 1987) was chief justice of the Supreme Court of Pennsylvania from 1977 to 1980, after serving as a Justice from 1960 to 1977.He was Lackawanna County (PA) District Attorney from 1934 to 1941 and Lackawanna County (PA) Judge from 1942 to 1959.