William Manning Marable (May 13, 1950 – April 1, 2011) was an American professor of public affairs, history and African-American Studies at Columbia University. Marable founded and directed the Institute for Research in African-American Studies. Marable authored several texts and was active in progressive political causes. At the time of his death, Marable had completed a biography of human rights activist Malcolm X entitled Malcolm X: A Life of Reinvention (2011), for which he won the 2012 Pulitzer Prize for History.
Marable was born in Dayton, Ohio. He received his Bachelor of Arts degree from Earlham College (1971) and went on to earn his master's degree (1972) and Ph.D. (1976) in history, at University of Wisconsin, and University of Maryland. Marable served on the faculty of Tuskegee Institute, University of San Francisco, Cornell University, Fisk University, served as the founding director of the Africana and Hispanic Studies Program at Colgate University, Purdue University, Ohio State University, and University of Colorado at Boulder, where he was chairman of the Department of Black Studies. He founded the Institute for Research in African-American Studies (1993) at Columbia University, later appointed as the M. Moran Weston and Black Alumni Council Professor of African-American Studies and professor of history and public affairs.