An extremist is a proponent of extremism.
Extremist may also refer to: Political fringe movements The Extremists (professional wrestling), a professional wrestling tag team Extremists (comics), a team of supervillains in DC Comics Justice League titles The Extremist (comics), a four-issue comic book mini-series Extremist (album), Demon Hunter album The Extremist, Joe Satriani album and title track Extremist (film), a 2025 Russian short drama