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 Exo from Reverxe "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
See also Flatliner (disambiguation) Flat (disambiguation)