# Hex

Hex usually refers to:
* A curse or supposed real and potentially supernaturally realized malicious wish
* Hexadecimal, a base-16 number system often used in computer nomenclature
Hex, HEX, or The Hex may also refer to:

## Magic

* Hex sign, a barn decoration originating in Pennsylvania Dutch regions of the United States
* Hex work, a Pennsylvania Dutch (German) folk magic system also known as pow-wow

## Engineering and technology

* Hex key, a tool also known as a hex wrench or Allen wrench, used to drive fasteners
* Hex key, a number sign (#) key on telephones (regional term used in Singapore and Malaysia)
* High-energy X-rays, sometimes abbreviated "HEX-rays"
* Hexcentric, an item of climbing protection equipment
* Heat exchanger, a device for heat transfer
* Hypersonic Flight Experiment, a planned mission of the Indian Space Research Organisation
* Intel HEX, a computer file format
* Uranium hexafluoride, a compound used in nuclear fuel refinement
* Hex color, a six-digit, three-byte hexadecimal number used in computing applications to represent colors

## Businesses and services

* Hex'Air, an airline based in southern France
* Heathrow Express, a train service in London
* Nasdaq Helsinki, formerly the Helsinki Stock Exchange

## Games and sport

* Hex, a hexagonal tile of a hex map, used in war and strategy board games
* Hex (board game), a mathematical strategy game played on a hexagonal grid or rhombus
* Hex (climbing), an item of rock climbing equipment used to arrest a fall
* Hex (video game), a 1985 computer game for the Amiga and Atari ST
* Hex: Shards of Fate, an MMO trading card game by Cryptozoic Entertainment
* Hex – The Legend of the Towers, a Vekoma Madhouse ride at the Alton Towers Resort, England
* The Hexagonal (CONCACAF), final round of FIFA World Cup qualifiers for North America, Central America, and the Caribbean
* Hex, pseudonym of the puzzle writers Emily Cox and Henry Rathvon
* The Hex (video game), a 2018 computer game by the creator of Pony Island

## Places

* Hex River, a tributary of the Breede River in South Africa
* Hex River, a tributary of the Elands River in South Africa
* Hexham railway station, Northumberland, England

## Arts and media
### Books

* Hex (1998 novel), a dystopian novel for young adults by Rhiannon Lassiter
* Hex, a 2011 science fiction novel by Allen Steele
* HEX (2013 novel), a Dutch horror novel by Thomas Olde Heuvelt, published in English in 2016

### Fictional characters

* Hex (Ben 10), a villain in the Ben 10 franchise
* Hex (Discworld), a computer in Terry Pratchett's Discworld novels
* Hex Schofield, a companion of the Seventh Doctor in a series of Doctor Who audio plays
* Hex, an illusionist and escapologist in the Marvel Comics series ClanDestine
* Hex, an undead dark elf necromancer in the Netflix animated series Skylanders Academy
* HEX, an evil organization in the novel InterWorld
* Jonah Hex, a DC Comics character
* The Hex Girls, a fictitious musical group in the Scooby-Doo franchise

### Film, television and stage

* HEX, in WandaVision is a nickname for the city of Westview
* Hex (1973 film), a 1973 film starring Keith Carradine, Gary Busey, Dan Haggerty, and Hillarie Thompson
* Hex, a 1980 Hong Kong film directed by Kuei Chih-Hung
* Hex (2015 film), a 2015 film directed by Clarence Peters
* Hex, a 2018 film directed by Rudolf Buitendach
* Hex (musical), a 2021 musical based on the Charles Perrault version of Sleeping Beauty
* Hex (TV series), a 2004–2005 supernatural/horror drama on British television
* Jonah Hex (film), a 2010 film based on a DC Comics character
* Mr. Hex, a 1946 Bowery Boys comedy film
* Stephanie Bendixsen (born 1985), presenter for Australian TV show Good Game, known by the gamertag Hex

### Music
#### Musical artists

* Hex, an indie rock duo formed in 1988 by Steve Kilbey and Donnette Thayer
* Hex (VJ group), a British-based multimedia group active in the 1990s which later became Hexstatic
* Hex Hector (born 1965), American dance remixer

#### Songs and albums

* Hex (Bark Psychosis album), 1994
* Hex (Hex album), 1989, by the indie rock duo Hex
* Hex (Jon McKiel album), 2024
* Hex (Poison Girls album), 1979
* Hex, a 2003 album by the Los Angeles-based rock band Bigelf
* Hex; Or Printing in the Infernal Method, a 2005 album by the band Earth
* "Hex" (song), by Rezz and 1788-L
* "Hex", a 2014 song co-written by Wax Motif and Tommy Trash