The ACUI Collegiate Pocket Billiards National Championship, in recent years known more specifically as the ACUI Collegiate Nine-ball National Championship, was an amateur United States annual pool competition for university and college students, organized by the Association of College Unions International (ACUI). It was founded in 1937, and was one of ACUI's longest-running programs. In June 2020, the ACUI made the decision to discontinue their National Collegiate Pocket Billiards program.