The Flash is a name shared by several DC Comics superheroes. Created by writer Gardner Fox and artist Harry Lampert, the original Flash first appeared in Flash Comics #1 (1940).

Once nicknamed the Scarlet Speedster, the Flash possesses "super-speed," which includes the ability to run and move extremely fast, use superhuman reflexes and violate certain laws of physics. Thus far, four different characters, each of whom somehow gained the power of "super-speed", have assumed the identity of the Flash: Jay Garrick (1940-1956), Barry Allen (1956-1986), Wally West (1986-2006, 2007-), and Bart Allen (2006-2007).

The second incarnation of the Flash is generally considered the first hero of the Silver Age of comic books and the superhero has remained one of DC‘s most popular ever since. Each version of the Flash has been a key member of either the Justice Society of America or the Justice League, DC’s all-star teams. Wally West has recently rejoined the Justice League.

The Barry Allen version of the character (with Wally West elements) was featured in a live action TV series in 1990, starring John Wesley Shipp. The Wally West version of the Flash is featured in the animated series Justice League.