Kathleen Belew (born November 11, 1981) is an American tenured associate professor of history at Northwestern University, and an international authority on the white power movement.

[1] She is the author of Bring the War Home (2019), co-edited A Field Guide to White Supremacy (2021) with Ramón A. Gutiérrez, and contributed essays to The Presidency of Donald J. Trump: A First Historical Assessment (2022) and the New York Times bestseller Myth America: Historians Take on the Biggest Lies and Legends about Our Past (2023).

Her research and teaching focuses on the themes of history of the present, American conservatism, race, gender, violence, and the meaning of war, as well as racism, the white power movement, and militarism in the 21st-century United States.

[5] Belew spent ten years of research to write her first book, Bring the War Home: The White Power Movement and Paramilitary America.

[11] In her witness statement, Belew described what she terms "the white power movement" as a "threat to our democracy", said that it was "transnational", and "connected neo-Nazis, Klansmen, skinheads, radical tax protestors, militia members, and others.