Fast

Fast or FAST may refer to:{{TOC right}}

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 {{slink|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

Brian Leiser (born 1972), nicknamed "Fast", musician, member of the band Fun Lovin' Criminals
Fast Eddie (disambiguation)

FAST (stroke) (Face, Arm, Speech, and Time), a mnemonic for the symptoms of a stroke
Family System Test, a visualization method for representing cohesion and hierarchy constellations in families and similar social systems
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 ({{lang|zh|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