Fast

Arts and entertainment

FAST protocol, an adaptation of the FIX protocol, optimized for streaming
FAST TCP, a TCP congestion avoidance algorithm
Facilitated Application Specification Techniques, a team-oriented approach for requirement gathering
Fatigue Avoidance Scheduling Tool, software to develop work schedules
Features from accelerated segment test, computer vision method for corner detection
Feedback arc set in Tournaments, a computational problem in graph theory

Faʻatuatua i le Atua Samoa ua Tasi, a political party in Samoa
Fixing America's Surface Transportation Act, passed by the United States Congress
Foreign-Deployed Advisory and Support Teams, a former program of the US Drug Enforcement Administration; see Drug Enforcement Administration § Special Response Teams
Free and Secure Trade, a Canada-United States and Mexico-United States program to facilitate faster cross border trade

Fleet Antiterrorism Security Team, a unit of the United States Marine Corps
Fuel And Sensor Tactical packs, a type of conformal fuel tank developed for the F-15
Future Assault Shell Technology helmet, an American combat helmet

FAST Multimedia AG, former company located in Munich; vendor of graphics boards, video frame grabbers and video processing software; later consumed by Pinnacle Systems
FAST and later as Fast Search & Transfer, a Norwegian company focusing on data search technologies
Farnborough Air Sciences Trust, an aviation museum
Federation Against Software Theft, a UK organization that pursues those who illegally distribute software
Financial Alliance for Sustainable Trade
Firefighter assist and search team, a team of firefighters dedicated to the rescue of other firefighters
Fulbright Academy of Science & Technology

Fast Robinson (born 1994), English actor known professionally as Eddie-Joe Robinson

FAST (stroke) (Face, Arm, Speech, and Time), a mnemonic for the symptoms of a stroke
Farpoint Asteroid Search Team, an asteroid search team located at the Farpoint Observatory
Fast Auroral Snapshot Explorer, one in the series of NASA's Small Explorer spacecraft
Five-hundred-meter Aperture Spherical Telescope (五百米口径球面射电望远镜), a large single-dish radio telescope in Guizhou province, China
Fluorescence-activating and absorption-shifting tag, genetically encoded protein tag used in molecular biology
Focused assessment with sonography for trauma, an ultrasound used to examine the abdomen of a trauma patient
Fourier amplitude sensitivity testing, a variance-based global sensitivity analysis method
Future Attribute Screening Technology