Flatline (disambiguation)

Flatline may mean:


 * Flatline, an electrical time sequence measurement that shows no activity. Thus:
 * In heart function, asystole
 * In brain function, a flat electroencephalogram, where the brain shows no electrical activity (brain death)

Music

 * Flatline (album), a 1997 album by MC Breed
 * "Flatline" (B.o.B song), 2016
 * "Flatline" (Mutya Keisha Siobhan song), 2013, re-released in 2022
 * "Flatline" (Nelly Furtado song), 2017
 * "Flatline", a song by 5 Seconds Of Summer from 5SOS5
 * "Flatline", a song by Justin Bieber from Journals

Other

 * "Flatline" (Doctor Who), 2014 TV episode
 * Flatline, Tippmann company's Flatline Barrel System for paintball
 * Flatlining, budget freeze
 * Flatline (Transformers), a fictional character in the Transformers universe
 * Flatline (drink), a shot made from sambuca, tequila and Tabasco sauce