Victor Stone, also known as Cyborg, is a fictional character in the DC Extended Universe. Based on the character of the same name appearing in publications from DC Comics, he is portrayed by Ray Fisher. Originally appearing as a cameo in Batman v Superman: Dawn of Justice, Stone had a prominent role in the film Justice League. Cyborg's role in the latter film was subject to controversy as his backstory was heavily trimmed down in the theatrical release, in addition to sparking a conflict between Fisher, Joss Whedon, who had replaced Zack Snyder as director during post-production, and subsequently DC Films. Nonetheless, the character also appeared in Snyder's director's cut of Justice League (2021) with his original arc restored.

The DC Extended Universe (DCEU) is an American media franchise and shared universe centered on a series of superhero films produced by DC Studios and distributed by Warner Bros. Pictures. It is based on characters that appear in American comic books published by DC Comics. The DCEU also includes comic books, short films, novels, and video games. Like the original DC Universe in comic books, the DCEU is established by crossing over common plot elements, settings, cast, and characters.