CNSA Views 9 meanings found CNSA commonly stands for computer network and system administration in IT circles, while also representing nursing student associations in Canada and California and a naval swim club. Medical California Nursing Student Association Miscellaneous China National Space Administration Community Central Negros Shooters Association Governmental Coronado Navy Swim Assn Academic & Science Canadian Nursing Students Association California Nursing Students Association Computing Computer Network and System Administration Computer Networking and System Administration Business Certified Network Security Administrator