NHT

NHT may refer to:


 * National historic trail, in the United States
 * Natural Heritage Trust, an Australian government body
 * Naval Historical Team, of the United States Navy
 * NHT Airlines, a defunct Brazilian airline
 * NHT Loudspeakers, an American electronics company
 * Number theoretic Hilbert transform
 * Ometepec Náhuatl language
 * RAF Northolt, a Royal Air Force station in Greater London
 * Union Station (Northampton, Massachusetts)