
The Flash is the name of several superheroes appearing in American comic books published by DC Comics. Created by writer Gardner Fox and artist Harry Lampert, the original Flash first appeared in Flash Comics #1. Nicknamed the "Scarlet Speedster", all incarnations of the Flash possess "super speed", which includes the ability to run, move, and think extremely fast, use superhuman reflexes, and seemingly violate certain laws of physics.

All-Flash, originally published as All-Flash Quarterly, was a comic book magazine series published by All-American Publications and later National Periodicals featuring superhero Jay Garrick, the original Flash. The series was the first solo feature given to the Flash, who also appeared in the anthologies Flash Comics, All-Star Comics, and Comic Cavalcade. It ran for 32 issues from 1941 to 1947 and was originally published on a quarterly basis before changing over to a bi-monthly schedule with issue #6. Each issue regularly contained several stories featuring the Flash, as well as minor back-up features like Hop Harrigan, Butch McLobster, The Super Mobster, and Fat and Slat by cartoonist Ed Wheelan and, in later issues, Ton-O-Fun by Flash co-creator Harry Lampert.

Central City is a fictional American city appearing in comic books published by DC Comics. It is the home of the Silver Age version of the Flash, and first appeared in Showcase No. 4 in September–October 1956.

The Flash is an ongoing American comic book series featuring the DC Comics superhero of the same name. Over the years, the series has primarily focused on two characters who have worn the mantle of The Flash: Barry Allen, the second Flash, who was the original focus from 1959 to 1985, and 2010 to 2020. And Wally West, the third Flash, from 1987 to 2006, 2007 to 2008, and from 2021 to present. The series began at issue #105, picking up its issue numbering from the anthology series Flash Comics which had featured original Flash Jay Garrick.

"Flash of Two Worlds!" is a landmark comic book story that was published in The Flash #123. It introduces Earth-Two, and more generally the concept of the multiverse, to DC Comics. The story was written by Gardner Fox under the editorial guidance of Julius Schwartz, and illustrated by Carmine Infantino. In 2009, DC Comics released a new digitally remastered graphic novel collection, DC Comics Classics Library: The Flash of Two Worlds. It features the classic flagship story and other subsequent Pre-Crisis Flash material.

The Flash: Rebirth is a six-issue monthly American comic book limited series written by Geoff Johns and illustrated by Ethan Van Sciver. The series was published by DC Comics, and features characters from throughout the nearly seventy-year-long history of Flash comics.

Flashpoint is a 2011 comic book crossover story arc published by DC Comics. Consisting of an eponymous core limited series and a number of tie-in titles, the storyline premiered in May 2011. The core miniseries was written by Geoff Johns and pencilled by Andy Kubert. In its end, the series radically changes the status quo for the DC Universe, leading into the publisher's 2011 relaunch, The New 52.

Iron Heights Penitentiary is a fictional setting in the DC Comics Universe, a maximum-security prison which houses the many Flash rogues and superhuman criminals of Keystone City and Central City when captured. Iron Heights first appeared in Flash: Iron Heights (2001).