Fictional aliases

• The Flash, several DC Comics superheroes with super speed:
  • Jay Garrick
  • Barry Allen
  • Wally West, the first Kid Flash and third adult Flash
  • Bart Allen, the second Kid Flash who also became the adult hero for a time
• Flash (G.I. Joe), a character in the G.I. Joe universe
• Flash, a robot in the video game Brave Saga 2
• Flash, a character in the comedy film Daddy Day Care (2003)
• Flash, a character in the TV science fiction drama Real Humans
• Flash, a character in the 1989 American action comedy movie Speed Zone
• Flash, a character in the TV sitcom Step by Step
• Flash, a character in the film Zootopia (2016)
• Flash Gordon, the titular hero of science fiction comic strip
• Flash Sentry, in My Little Pony: Friendship is Magic
• Flash Thompson, a Marvel comic book character
• Flash, known as Furzz in the US, an anthropomorphic rabbit from Roary the Racing Car

Films

• Flash (1997 film), Disney Channel
• Flash (2007 film), Malayalam
• The Flash (film), 2023 film based on DC comics

Games

• Flash (pinball), a 1979 Williams pinball game
• Teen patti or Flash, a three-card poker-style game
• The Flash (video game), 1991, based on the superhero

Literature

Music

Television

• The Flash (1990 TV series), an American superhero series
• The Flash (2014 TV series), an American superhero series
• "Flash" (The Detectives), a 1995 episode

In arts and entertainment

• Flash (wrestler) (born 1981), masked professional wrestler
• Flash Brown (born 1981), pornographic actor and basketball player
• Adam Flash (born 1971), American professional wrestler
• Flash Flanagan (born 1974), American professional wrestler
• Grandmaster Flash (born 1958), American hip hop musician and DJ
• Larry "Flash" Jenkins (1955–2019), American actor, film director, producer, and screenwriter
• Scott Norton (born 1961), American professional wrestler
• Flash Terry (1934–2004), American guitarist and singer

In sport

• Flash (active 1995), on the TV show American Gladiators
• Gabriel Elorde (1935–1985), Filipino professional boxer
• Richard Flash (born 1976), English footballer
• Josh Gordon (born 1991), American football player
• Flash Hollett (1911–1999), Canadian ice hockey defenceman
• Cordarrelle Patterson (born 1991), American football player
• Gordon Shedden (born 1979), British racing driver
• Dwyane Wade (born 1982), American basketball player
• Lee Young-ho (born 1992), South Korean professional Starcraft player also known as "Flash"

Other people

• George Flash (1909–1990), Israeli politician
• Sandy Flash (died 1778), American highwayman
• Mark Kennedy (policeman) (born 1969), known undercover as Flash or Mark Stone

Computing

• Adobe Flash (formerly Shockwave Flash and Macromedia Flash), multimedia platform software
• Flash memory, a kind of non-volatile computer memory
• Flash!, the bundled graphics package for the SAM Coupé home computer

Other uses in science and technology

• Flash (manufacturing), excess material attached to a moulded product
• Flash (photography), instantaneous illumination for picture taking
• FLASH, a particle physics facility in Germany
• Flash lightning, a lightning burst within a cloud (Intracloud)
• FlAsH-EDT2 or FlAsH tag, a fluorescent label for proteins
• Fly Castelluccio Flash, an Italian paramotor design
• Hook flash, a telephony signal, often known as simply 'flash'
• M202 FLASH, a rocket launcher
• Tilbury Flash, an American racing monoplane built in the 1930s
• Fast low angle shot magnetic resonance imaging (FLASH), an MRI pulse sequence