Women's colleges in the United States are private single-sex U.S. institutions of higher education that only admit female students. They are often liberal arts colleges. There are approximately 26 active women's colleges in the United States in 2024, down from a peak of 281 such colleges in the 1960s.

The Seven Sisters are a group of seven liberal arts colleges in the Northeastern United States that are historically women's colleges. Barnard College, Bryn Mawr College, Mount Holyoke College, Smith College, and Wellesley College are still women's colleges. Vassar College became coeducational in 1969, and Radcliffe College was absorbed in 1999 by Harvard College and now offers programs in advanced study.