"Blackest Night" is a 2009–10 American comic book crossover storyline published by DC Comics, consisting of an eponymous central miniseries, written by Geoff Johns and penciled by Ivan Reis, along with a number of tie-in issues. Blackest Night involves Nekron, a personified force of death who reanimates deceased superheroes and seeks to eliminate all life and emotion from the universe. Geoff Johns has identified the series' central theme as emotion. The crossover was published for eight months as a limited series and in both the Green Lantern and Green Lantern Corps comic titles. Various other limited series and tie-ins, including an audio drama from Darker Projects, were published.

Geoffrey Johns is an American comic book writer, screenwriter, and film and television producer. Johns's work on the DC Comics characters Green Lantern, Aquaman, Flash, and Superman has drawn critical acclaim. He co-created the DC character Courtney Whitmore based on his deceased sister. He also expanded the Green Lantern mythology, adding in new concepts and co-creating numerous characters. Among the DC characters and concepts he co-created are Larfleeze, the Sinestro Corps, the Indigo Tribe, the Red Lantern Corps, Atrocitus, the Black Lantern Corps, Jessica Cruz, Hunter Zolomon, Tar Pit, Simon Baz, Bleez, Miss Martian, and Kate Kane.