CNA may refer to:
Certifications
- Certification and Accreditation
- Certified National Accountant
- Certified Novell Administrator
- Certified Nursing Assistant
Education
- College of the North Atlantic
- Republic of China Naval Academy, in Taiwan
Organizations
- California Nurses Association
- Canadian Nuclear Association
- Canadian Nurses Association
- Chin National Army
- CNA (nonprofit), the Center for Naval Analyses
- Center for Transportation and Logistics Neuer Adler
- Centre for Nonviolent Action, Bosnia and Serbia
- Royal Canadian Numismatic Association
- National Audiovisual Council, Romania
- Centre national de l'audiovisuel, Luxembourg
Companies
- Canadian Numbering Administrator
- China Northern Airlines
- CNA Financial Corporation
- Compagnia Nazionale Aeronautica, an Italian aircraft manufacturer of the 1930s
- CNA (bookstore), a South African chain founded in 1896
News agencies
- Caribbean News Agency
- Catholic News Agency
- Central News Agency (disambiguation), any of several news agencies
- CNA (TV network), based in Singapore, formerly known as Channel NewsAsia
- Cyprus News Agency
Technology
- Computer network attack, one type of computer network operations (CNO) in U.S. military doctrine
- Converged network adapter, a computer interface for both general-purpose and storage networks
- CVE Numbering Authority, an entity responsible for assigning Common Vulnerabilities and Exposures identifiers
Other uses
- Central Neo-Aramaic, a language
- Child Nutrition Act
- Copy number abnormality, in genomics
- Cartoon Network Arabic, a TV channel
- Chimamanda Ngozi Adichie (born 1977), Nigerian writer
- C. N. Annadurai (1909–1969), Indian politician