This transformative collection advances new approaches to Black intellectual history by foregrounding the experiences and ideas of people who lacked access to more privileged mechanisms of public discourse and power. While the anthology highlights renowned intellectuals such as W. E. B. Du Bois, it also spotlights thinkers such as enslaved people in the antebellum United States, US Black expatriates in Guyana, and Black internationals in Liberia. The knowledge production of these men, women, and children has typically been situated outside the disciplinary and conceptual boundaries of intellectual history. The volume centers on the themes of slavery and sexuality; abolitionism; Black internationalism; Black protest, politics, and power; and the intersections of the digital humanities and Black intellectual history. The essays draw from diverse methodologies and fields to examine the ideas and actions of Black thinkers from the eighteenth century to the present, offering fresh insights while creating space for even more creative approaches within the field. Timely and incisive, Ideas in Unexpected Places encourages scholars to ask new questions through innovative interpretive lenses and invites students, scholars, and other practitioners to push the boundaries of Black intellectual history even further.