Taskmaster (Anthony "Tony" Masters) is a fictional character appearing in American comic books published by Marvel Comics. Created by writer David Michelinie and artist George Pérez, the character made his debut in The Avengers #195 (May 1980). Possessing photographic reflexes that allow him to mimic any fighting style at the cost of his long and short-term memory, he has served as an adversary of superheroes such as Captain America, Ant-Man and Spider-Man among others in the Marvel Universe. He is usually depicted as a mercenary hired by numerous criminal organizations to act as a training instructor, and is the biological father of Finesse.

The character has been adapted from the comics into various forms of media, including several animated television series and video games. A female version of Taskmaster named Antonia Dreykov appears in the Marvel Cinematic Universe film Black Widow (2021), portrayed by Olga Kurylenko. Kurylenko will reprise the role in the upcoming film Thunderbolts (2024).