React

REACT or React may refer to:

Computer science

React (JavaScript library), a JavaScript library for building user interfaces, from Facebook
ReactOS, an open-source operating system compatible with Microsoft Windows

React (band), a 1990s American boys band made of Tim Cruz and Daniel Matrium
React (The Fixx album), a 1987 live album by the band The Fixx
React (Erick Sermon album), a 2002 album by rapper Erick Sermon
- "React" (Erick Sermon song), a song from the album
React (Robert Rich and Ian Boddy album), a 2008 album by electronic musicians Robert Rich and Ian Boddy
"React" (Onyx song), a song by Onyx on their 1998 album Shut 'Em Down
React (book), originally Reacciona, a 2011 Spanish-language book
React Music Limited, a 1990s London based dance record label
React (media franchise), a metaseries of web videos created by the Fine Brothers which includes Kids React, Teens React, Elders React, YouTubers React, Adults React, and College Kids React
- React to That, a TV series based on the first two React series that was broadcast on Nickelodeon

Rapid Execution and Combat Targeting System, the current command and control system of the United States for nuclear intercontinental ballistic missiles
Radio Emergency Associated Communication Teams, a volunteer radio emergency service across the United States and Canada
Remote Electronically Activated Control Technology belt or REACT belt, a restraint device
Rapid Enforcement Allied Computer Team, a partnership of agencies against computer crime in California, USA, established in 1997 by the California Department of Justice
Research and Education Automatically Controlled Telescope, a telescope at Fenton Hill Observatory, New Mexico, USA
React - The Anti-Counterfeiting Network, a not-for-profit cooperative association fighting the trade in counterfeit goods