KNN

KNN may refer to:


 * k-nearest neighbors algorithm (k-NN), a method for classifying objects
 * Nearest neighbor graph (k-NNG), a graph connecting each point to its k nearest neighbors
 * Kabataan News Network, a Philippine television show made by teens
 * Khanna railway station, in Khanna, Punjab, India (by Indian Railways code)
 * Kings Norton railway station, in Birmingham, England (by National Rail code)
 * Knighton News Network, the recurring TV station which hosts the news recap by Herb Herbertson at the beginning of every episode of Nexo Knights
 * Konkani language, spoken in the Konkan coast of India (by ISO 639-3 language code)
 * Korea New Network, broadcast television in South Korea
 * Kurdish News Network, news television network in Iraqi Kurdistan
 * Kankan Airport, Guinea (by IATA airport code)