Fast
Fast or FAST may refer to:

Fast (noun), high speed or velocity
Fast (noun, verb), to practice fasting, abstaining from food and/or water for a certain period of time

Acronyms and coded
Computing and software
Faceted Application of Subject Terminology, a thesaurus of subject headings
Facilitated Application Specification Techniques, a team-oriented approach for requirement gathering
FAST protocol, an adaptation of the FIX protocol, optimized for streaming
FAST TCP, a TCP congestion avoidance algorithm
FAST and later as Fast Search & Transfer, a Norwegian company focusing on data search technologies
Fatigue Avoidance Scheduling Tool, software to develop work schedules
Features from accelerated segment test, computer vision method for corner detection
Federation Against Software Theft, a UK organization that pursues those who illegally distribute software
Feedback arc set in Tournaments, a computational problem in graph theory
USENIX Conference on File and Storage Technologies

Government
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

Military
Fleet Antiterrorism Security Team, a branch 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,  a combat helmet of United States of America.

Organizations
Farnborough Air Sciences Trust, an aviation museum
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

Science and medicine
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

Other acronyms
Fifteen and Send Time, a type of dog agility competition
Fairfield and Suisun Transit
Free ad-supported streaming television

Arts and entertainment
"Fast" (Juice Wrld song), 2019
"Fast" (Luke Bryan song), 2016
"Fast" (Sueco song), 2019
"Fast", a song by Chief Keef and Zaytoven from GloToven, 2019
Fast, an album by Custom, 2002
Fast, a 2010 short film starring Charlyne Yi
"Fast (Motion)", 2021 song by Saweetie
Fast & Furious, an action franchise

People
People with the surname
Alexia Fast (born 1992), Canadian actress
Christian Fast (1762–1841), American soldier and pioneer
Herman Becker Fast (1887-1945), American businessman, farmer, and politician
Howard Fast (1914–2003), American novelist and television writer
Jesper Fast (born 1991), Swedish ice hockey player
Jonathan Fast (born 1948), American author, son of Howard Fast
Julius Fast (1919–2008), American author, brother of Howard Fast
Matt Fast, lead singer of the Canadian punk band The Undecided
Molly Jong-Fast (born 1978), American author, daughter of Jonathan Fast
Piotr Fast (born 1951), Polish professor and translator

People with the nickname
Brian Leiser (born 1972), nicknamed "Fast", musician
Fast Eddie (disambiguation)

Other uses
Fast Product, a record label

See also
Nacional Fast Clube, a Brazilian football club
Fast bowling, a practice in cricket
All pages with titles containing fast
Fast Company (disambiguation)
Faster (disambiguation)