Eobard Thawne, also known as the Reverse-Flash, is a character in The CW's Arrowverse media franchise. Based on the DC Comics supervillain of the same name, he is primarily portrayed by Tom Cavanagh and Matt Letscher. Letscher played the character's original likeness, while Cavanagh portrayed him in the form of Harrison Wells. Thawne is introduced and featured most prominently in the television series The Flash, though he has also appeared in spin-off shows and crossover events set in the shared fictional universe.

The Reverse-Flash is a name used by several supervillains appearing in American comic books published by DC Comics. Each iteration of the character serves as a foil and an enemy of the Flash.