NST

NST may refer to:

Health

• Non-stress test, monitoring of third-trimester pregnancy using a cardiotocograph

Media

• Niigata Sogo Television, a television company in Niigata Prefecture, Japan
• The New Straits Times, a Malaysian newspaper
• New Sabah Times

Science and Engineering

• National Standard Thread, a thread form used on fire hose couplings in the USA
• The Natural Sciences Tripos at the University of Cambridge
• Neon Sign Transformer, a high voltage transformer for lighting neon signs and for use by high voltage hobbyists
• Nonstandard set theory

Transportation

• Nakhon Si Thammarat Airport, an airport in Nakhon Si Thammarat, Thailand

Other

• Neopian Standard Time. Primary time in the virtual pet site Neopets, which corresponds to Pacific Standard Time
• Network Security Toolkit, a bootable live CD containing a wide array of network security administration software
• New Standard Tuning, a guitar tuning
• Newfoundland Standard Time
• Nintendo Software Technology, a video game company
• Neural speech transmitter (in the Aqua Teen Hunger Force episode "Super Spore"), a colander modified to transmit speech from the brain to a single stereo speaker
• NST (Company), An educational travel company based in the UK.