Martha S. Jones is an American historian and legal scholar. She is the Society of Black Alumni Presidential Professor and Professor of History at The Johns Hopkins University. She studies the legal and cultural history of the United States, with a particular focus on how Black Americans have shaped the history of American democracy. She has published books on the voting rights of African American women, the debates about women's rights among Black Americans in the early United States, and the development of birthright citizenship in the United States as promoted by African Americans in Baltimore before the Civil War.