Bruce Lorne Campbell (born June 22, 1958) is an American actor and filmmaker. He is best known for his role as Ash Williams in Sam Raimi's Evil Dead horror series, beginning with the short movie Within the Woods (1978). He has also featured in many low-budget cult movies, such as Crimewave (1985), Maniac Cop (1988), Sundown: The Vampire in Retreat (1989), and Bubba Ho-Tep (2002).

Campbell had the main roles of the television series The Adventures of Brisco County, Jr. (1993–1994) and Jack of All Trades (2000), and a recurring role as Autolycus, King of Thieves in Hercules: The Legendary Journeys (1995–1999) and Xena: Warrior Princess (1995–1999). He played Sam Axe on the USA Network series Burn Notice (2007–2013) and reprised his role as Ash for the Starz series Ash vs. Evil Dead (2015–2018). He also appeared in The Escort (2015).

Campbell directed, produced, and featured in the documentaries Fanalysis (2002) and A Community Speaks (2004); co-wrote, directed, produced, and featured in the movie Man with the Screaming Brain (2005); and directed, produced, and featured in a parody of his career My Name Is Bruce (2007).

Campbell is known for frequent collaborations with the aforementioned Raimi, his brother Ted, Josh Becker, and Scott Spiegel.

Bruce Lorne Campbell was born in Royal Oak, Michigan, on June 22, 1958, the son of advertising executive and college professor Charles Newton Campbell and homemaker Joanne Louise (née Pickens). He is of English and Scottish ancestry, and has an older brother named Don and an older half-brother named Michael. His father was also an actor and director for local theater. Campbell began acting and making short Super 8 movies with friends as a teenager. After meeting future moviemaker Sam Raimi while the two attended Wylie E. Groves High School, they became good friends and collaborators. Campbell attended Western Michigan University and continued to pursue an acting career.

Campbell and Raimi collaborated with a 30-minute Super 8 version of the first Evil Dead movie, titled Within the Woods (1978), which was initially used to attract investors. He and Raimi got together with family and friends to begin working on The Evil Dead (1981). While featuring as the protagonist, Campbell also had participation with the production of the movie, receiving a co-executive producer credit. Raimi wrote, directed, and edited the movie, while Rob Tapert produced. After an endorsement by horror author Stephen King, the movie slowly began to receive attention and offers for distribution. Four years after its original release, it became the most popular movie in the UK. It was then distributed in the United States, resulting in the sequels Evil Dead II (1987) and Army of Darkness (1992).

Campbell was also drawn in the Marvel Zombie comics as his character, Ash Williams. He is featured in five comics, all in the series Marvel Zombies vs. Army of Darkness. In them, he fights alongside the Marvel heroes against the heroes and people who have become zombies (deadites) while in search of the Necronomicon (Book of the Names of the Dead). Campbell also played as Coach Boomer in the movie “Sky High”.

He has appeared in several of Raimi's movies other than the Evil Dead series, notably having cameo appearances in the director's Spider-Man film series. Campbell also joined the cast of Raimi's movie Darkman and The Quick and the Dead, though having no actual screen time in the latter movie's theatrical version. In March 2022, Campbell was announced to have a cameo in Raimi's Marvel Cinematic Universe film Doctor Strange in the Multiverse of Madness.