VNS is an initialism for: Telecommunications Victim Notification System, an automated system that notifies a victim that the perpetrator of a crime that affected them has been released Virtual Network Switching, a technique in telecommunications used to reduce or eliminate the number of data segments used in a command Virtual Network System, a network that connects all virtual machines and devices regardless of location Visual Navigation System Voice Network Switching Science Vagus nerve stimulation, a medical treatment used for certain types of epilepsy Vicarious nucleophilic substitution, a special type of nucleophilic aromatic substitution Visiting Nurse Service, an in-home medical care service Other Valley New School, a charter school in Appleton, Wisconsin, USA Varanasi, a city in northern India The IATA code of Varanasi Airport, Varanasi, India Variable Neighborhood Search Viet Nam News, English-language newspaper in Vietnam Viqarunnisa Noon School, an all-girls higher secondary school in Dhaka, Bangladesh Visual Nature Studio, a Microsoft Windows program used to create photorealistic images Government of National Salvation (Vlada narodnog spasa), the colloquial name for the collaborationist puppet government in Serbia between 1941-1944 Vlach National Party (Vlaška narodna stranka), a political party in Serbia VNS Matrix, Australian artist collective Voter News Service, a defunct American exit poll consortium