Caste: The Origins of Our Discontents is a nonfiction book by the American journalist Isabel Wilkerson, published in August 2020 by Random House. The book describes racism in the United States as an aspect of a caste system—a society-wide system of social stratification characterized by notions such as hierarchy, inclusion and exclusion, and purity. Wilkerson does so by comparing aspects of the experience of American people of color to the caste systems of India and Nazi Germany, and she explores the impact of caste on societies shaped by them, and their people.

Isabel Wilkerson is an American journalist and the author of The Warmth of Other Suns: The Epic Story of America's Great Migration (2010) and Caste: The Origins of Our Discontents (2020). She is the first woman of African-American heritage to win the Pulitzer Prize in journalism.