NTK

NTK could refer to:


 * Naam Tamilar Katchi, political party in Tamil Nadu, India
 * Národní technická knihovna, library in Prague, Czech Republic
 * Need to Know (newsletter)
 * Newton Toolkit, for the Newton (platform) PDA
 * Ngau Tau Kok station, Hong Kong, MTR station code
 * Nakkilan Tennisklubi, a floorball team located in Nakkila, Finland. (Known as NTK Nakkila),
 * Neural tangent kernel, a mathematical tool to describe the training of artificial neural networks