CNU could stand for:
University Capital Normal University, Beijing, China Cebu Normal University, Philippines Chia Nan University of Pharmacy and Science, Tainan, Taiwan Chonnam National University, Gwangju, South Korea Christopher Newport University, Newport News, Virginia, US Chungnam National University, Daejeon, South Korea
Police Crisis Negotiation Unit, a special police unit for hostage, barricade, and suicide situations FBI Crisis Negotiation Unit Singapore Police Force Crisis Negotiation Unit
Others Cameroonian National Union, later Cameroon People's Democratic Movement Congress for the New Urbanism CNU (singer) (born 1991), Korean