Judith Weisenfeld is the Agate Brown and George L. Collord Professor of Religion and associated faculty in the Department of African American Studies and the Program in Gender and Sexuality Studies. She also serves on the Executive Committee of the Program in American Studies.

Weisenfeld’s research focuses on early twentieth-century African American religious history, focusing on a range of topics, including the relation of religion to constructions of race, the impact on black religious life of migration, immigration, and urbanization, African American women’s religious history, religion in film and popular culture, and religion and medicine. She is the author of "New World A-Coming: Black Religion and Racial Identity During the Great Migration" (NYU 2016), which won the 2017 Albert J. Raboteau Prize for the Best Book in Africana Religions, of "Hollywood Be Thy Name: African American Religion in American Film, 1929-1949" (California 2007), and "African American Women and Christian Activism: New York's Black YWCA, 1905-1945" (Harvard 1997), as well as many articles and book chapters on topics in African American and American religious history and culture. Her current research focuses on the psychiatry, race, and Black religions in the late nineteenth and early 20th century United States.

She founded the online journal The North Star: A Journal of African American Religious History, which she edited from 1997-2005, and from 2016-2021 she was a co-editor of the journal Religion & American Culture. Her work has been supported by grants from the Ford Foundation, the National Endowment for the Humanities, the American Council of Learned Societies, and the American Academy of Religion. She is an elected member of the Society of American Historians and the American Academy of Arts and Sciences. Weisenfeld currently co-directs The Crossroads Project: Black Religious Histories, Cultures, and Communities, which is supported by the Henry Luce Foundation.