NSAC may refer to:
National Security Analysis Center, an FBI counter-terrorism initiative National Spiritualist Association of Churches National Student Athletes Championship, an annual tournament organized by AsiaBasket NATO Strategic Airlift Capability Nevada Athletic Commission, popularly known as the Nevada State Athletic Commission, a regulatory body for exhibitions of unarmed combat North Shore Aero Club, in Auckland, New Zealand Nova Scotia Agricultural College, in Nova Scotia, Canada National Society for Autistic Children, the former name of the Autism Society of America