NTP may refer to:
Government
- National Toxicology Program, a program of the United States Department of Health and Human Services
- National Transport Plan, a ten-year plan of Norway
Organizations
- Nation Transformation Party, a political party in Papua New Guinea
- New Teacher Project, a US non-profit organization
- Norsk Teknisk Porselen, Norwegian ceramics manufacturer
- Northern Territory Police, the police force in the Northern Territory of Australia
- NTP, Inc., an American company founded by inventor Thomas J. Campana Jr.
Science and technology
Computing
- Network Time Protocol, for synchronizing clocks over a computer network
Chemistry
- Normal temperature and pressure, standardizing experimental conditions
Biology
- Nucleoside triphosphate, derivaties of nucleic acids, a prominent example being ATP
Rocket Propulsion
- Nuclear thermal propulsion, producing thrust through nuclear powered heating of gas
Other uses
- Ninh Thuận Province, a province in Vietnam