CACI, also known as Catholic Alumni Clubs International, is an association of more than 25 clubs located throughout the United States. It is a nonprofit organization that facilitates communication between local clubs. The association also hosts the National Convention, which organizes tours, sporting events, liturgies, seminars and parties. Catholic Alumni Clubs International maintains an online shop that offers a range of clothes, stationery items and game accessories. The association operates the CACI Scholarship Fund. Catholic Alumni Clubs provides a variety of activities, such as volleyball, golf, tennis, hiking, theater, concerts and other cultural events. In addition, the clubs offer various membership options for men and women.