Barnard College is a private women's liberal arts college in New York City, New York, United States. It is affiliated with Columbia University and was founded in 1889 by a group of women led by young student activist Annie Nathan Meyer, who petitioned Columbia University's trustees to create an affiliated college named after university president Frederick A. P. Barnard. The college is one of the original Seven Sisters—seven liberal arts colleges in the Northeastern United States that were historically women's colleges.

Barnard College has independent admission, curricula, and finances separate from Columbia. It shares sports teams with Columbia through the Columbia–Barnard Athletic Consortium, an agreement that makes Barnard the only women's college to compete in NCAA Division I athletics.

Barnard College offers Bachelor of Arts degree programs in about 50 areas of study. In addition to Columbia, students may also pursue elements of their education at the Juilliard School, the Manhattan School of Music, and the Jewish Theological Seminary which are also based in New York City. Its 4-acre (1.6 ha) campus is located in the Upper Manhattan neighborhood of Morningside Heights, stretching along Broadway between 116th and 120th Streets. It is directly across from Columbia's main campus.

Barnard College alumnae include leaders in science, religion, politics, the Peace Corps, medicine, law, education, communications, theater, and business. Barnard graduates have been recipients of Emmy, Tony, Grammy, Academy, and Peabody awards, Guggenheim Fellowships, MacArthur Fellowships, the Presidential Medal of Freedom, the National Medal of Science, and the Pulitzer Prize.