Black Adam (Teth-Adam / Theo Adam) is a character appearing in American comic books published by DC Comics. The character was created by Otto Binder and C. C. Beck, and first appeared in the debut issue of Fawcett Comics' The Marvel Family comic book in December 1945. Since DC Comics licensed and acquired Fawcett's characters in the 1970s, Black Adam has endured as one of the archenemies of the superhero Captain Marvel / Shazam and the Marvel Family (a.k.a. Shazam Family), alongside Doctor Sivana and Mister Mind.

Black Adam was originally depicted as a supervillain and the ancient Egyptian predecessor of Captain Marvel, who fought his way to modern times to challenge the hero and his Marvel Family associates. Since the turn of the 21st century, however, Black Adam has been redefined by DC Comics writers Jerry Ordway, Geoff Johns, and David S. Goyer as a corrupted antihero attempting to clear his name and reputation. Featured roles in such comic book series as Justice Society of America, Villains United, Infinite Crisis, and 52 have elevated the character's prominence in the DC Universe, culminating with DC's 2021 line-wide Infinite Frontier relaunch, which had the character, now known as Tethon / The Mighty Adam, join the Justice League. In 2009, Black Adam was ranked as IGN's 16th-greatest comic book villain of all time.

The character made his cinematic debut in DC League of Super-Pets (2022), voiced by Dwayne Johnson, who subsequently starred as the character in live-action in the DC Extended Universe (DCEU) film Black Adam (2022), after facially cameoing in Shazam! (2019). In Black Adam, Jalon Christian and Uli Latukefu additionally portray Hurut / Teth-Adam: Black Adam's son and the original champion of Kahndaq.