Blackout may refer to:

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Loss of lighting or communication

• Power outage, an accidental loss of electric power
• Rolling blackout, an intentional loss of electric power
• Blackout (wartime), the practice of minimizing outdoor lighting for protection from attack
• Blackout (broadcasting), a regulatory ban on the broadcasting of an event
• Media blackout, censorship of news related to a certain topic
• Communications blackout, a halt to communication abilities or utilization

Loss of awareness

• Fainting, a loss of consciousness
• Blackout (alcohol-related amnesia)
• Shallow water blackout
• Deep water blackout
• A loss of vision while maintaining consciousness under g-force

Music

Bands and Labels

• Black-Out, a Hungarian rock band
• The Blackout (band), a Welsh post-hardcore band
• The Blackouts (1979 band), Seattle post-punk band that included future members of Ministy
• The Living Blue, Illinois band formerly known as The Blackouts
• Blackout Records, a record label

Albums

• Blackout (Britney Spears album)
• Blackout (Dominion album)
• Blackout (Dropkick Murphys album)
• Blackout (Hed PE album)
• Blackout (Scorpions album)
• Blackout! , an album by Redman and Method Man
• Black Out , an album by The Good Life
• Blaque Out , an album by Blaque
• The Blackout! The Blackout! The Blackout! , debut EP by the Blackout band

Songs

• "Blackout" (David Bowie song)
• "BlackOut" (Heidi Montag song)
• "Blackout," a song by Asian Kung-Fu Generation on the album Fanclub
• "Blackout," a song by British Sea Power on the album The Decline of British Sea Power
• "Blackout," a song by Lupe Fiasco on the album Lupe Fiasco's The Cool
• "Blackout," a song by Hybrid on the album Morning Sci-Fi
• "Blackout," a song by Lovedrug on the album Pretend You're Alive
• "Blackout," a song by Muse on the album Absolution
• "Blackout," a song by Pepper on the album Pink Crustaceans and Good Vibrations
• "Blackout," a song in the musical In the Heights

Film and television

• Blackout (game show)
• Blackout (2008 film), an American television film starring Jeffrey Wright and Zoe Saldana
• Blackout (2007 film), an American film starring Amber Tamblyn and Aidan Gillen
• Blackout (M.A.S.K. episode)
• Blackout gag, a comedy technique used primarily in animation
• The Blackout , a 1997 film directed by Abel Ferrara
• "The Blackout," a Black Books episode

Fiction

• Blackout (Buffy novel)
• Blackout (comics), two characters in the Marvel universe
• Blackout (Transformers ), several characters in the Transformers franchise
• Blackout , a novel by Campbell Armstrong
• Blackout , an upcoming novel by Connie Willis
• Blackout, the performance name of Michael Biggins

Games

• Blackout (card game)
• Blackout Rugby, a rugby union management game
• Fainting game
• Blackout, a Halo 3 map

Other uses

• The Blackout (professional wrestling)
• New Zealand Internet Blackout, an online protest