VNA

VNA may refer to:

• Vagal nerve activity, activity of the vagus nerve which connects the brain to the heart
• Ventral anterior nucleus, a nucleus of the thalamus
• Vertebral nerve activity, activity of the vertebral nerve, a nerve near the backbone and neck in vertebrates
• Virus-neutralizing antibody, antibodies that are specialized to bind to viral components such as viral glycoproteins.
• Vendor Neutral Archive, an archive for medical image storage that is independent of the picture archiving and communication system (PACS) that utilizes those images

• Value network analysis, a methodology for handling value networks
• Vanillylamide of n-nonanoic acid, another name for the capsaicinoid nonivamide
• Vector network analyzer, an instrument for electrical circuits analysis, measuring both amplitude and phase properties
• Very narrow aisle, a common abbreviation for a type of forklift truck used in warehousing
• von Neumann architecture, a design model for a stored-program digital computer, utilized by virtually all modern computers

• Vietnam news agency, the official news agency of Vietnam
• Vietnamese National Army (1949–1955), the loyalist army in the First Indochina War
• Virgin New Adventures, a series of novels by Virgin Publishing based on the British television series Doctor Who
• Virgin Nigeria Airways, the former name of Nigerian Eagle Airlines, the national flag carrier of Nigeria
• Visiting Nurse Association, a type of home healthcare organization

• The IATA airport designator of Saravane Airport, Salavan Province, Laos
• The ICAO airline designator of Empresa Aviación Interamericana, Uruguay

• Vnà, a village in the Lower Engadine, Graubünden, Switzerland