College admissions in the United States refers to the process of applying for entrance to institutions of higher education for undergraduate study at one of the nation's colleges or universities. For those who intend to attend college immediately after high school, the college search usually begins in the eleventh grade with most activity taking place during the twelfth grade. Applications to many schools are due in October or November of senior year for Early Decision or Early Action, or in December or January of their senior year for Regular Decision, though the timeline may vary depending on the universities, some having an earlier deadline due to the fact that the admissions process may weigh in more on transcripts. Students at top high schools may often begin the process during their tenth grade or earlier. There are considerable numbers of students who transfer from one college to another, as well as adults older than high school age who apply to college.

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.