A werewolf, in folklore, is a mythical being described as a person who shapeshifts into a wolf-like creature during the nights of a full moon.

Werewolf may also refer to:

• The Werewolf (1913 film), a 1913 American silent film
• The Werewolf (1956 film), a 1956 American film
• Werewolf (1996 film), a direct-to-video horror film featured on Mystery Science Theater 3000
• Werewolf (2016 film), a 2016 Canadian film
• Werewolf, a 2018 Polish film screened at the 2019 Toronto After Dark Film Festival
• Werewolves (film), a 2024 action horror film

• "Werewolf", Barney Miller season 3, episode 6 (1976)
• "Werewolf", Digimon Ghost Game episode 35 (2022)
• "Werewolf", Lost Tapes season 2, episode 4 (2009)
• "Werewolf", Roger Ramjet season 2, episode 1 (1966)
• "Werewolf", So Weird season 2, episode 8 (1999)
• "Werewolf", Superboy season 3, episode 19 (1991)
• "Werewolf", Undead Murder Farce episode 9 (2023)
• "Werewolf", Voyage to the Bottom of the Sea season 3, episode 2 (1966)
• "Werewolves", CSI: Crime Scene Investigation season 6, episode 11 (2006)
• "Werewolves", In Search of... (2002) episode 3a (2002)
• "Werewolves", Murdoch Mysteries season 2, episode 12 (2009)
• "Werewolves", Mystery Hunters season 1, episode 17a (2002)
• "The Werewolf", Kolchak: The Night Stalker episode 5 (1974)
• "The Werewolf", Tracy Beaker Returns series 1, episode 11 (2010)

• Werewolf (TV series), an American horror series on Fox network from 1987

• "Werewolf", a song by Fiona Apple from The Idler Wheel...
• "Werewolf", a song by Michael Hurley from Armchair Boogie, covered by Cat Power on You Are Free
• "Werewolf", a song by CocoRosie
• "Werewolf", a song by the Five Man Electrical Band
• "Werewolf", a song by Krokus from Pain Killer
• "Werewolf", a song by Lil Uzi Vert featuring Bring Me the Horizon from Pink Tape, 2023
• "The Werewolf", a song by Paul Simon from Stranger to Stranger
• The Werewolfs, a band featuring Derf Scratch

• Werewolf (Dell Comics), a 1966-1967 character
• Werewolf by Night, a Marvel Comics character debuting in 1972
• Werewolf (DC Comics), a comics supervillain in the DC Universe

• The Were-wolf, an 1896 novel by Clemence Housman
• The Werewolf (French: Le Loup-garou), a 1924 novel by Alfred Machard
• Werewolf, a 1926 novel by Max Brand
• The Werewolf (Danish: Varulven), a 1958 novel by Aksel Sandemose
• "The Werewolf", a short story featured in The Bloody Chamber and Other Stories, a 1979 collection by Angela Carter
• Werewolf!, a 1979 short story anthology edited by Bill Pronzini
• Werewolf: Horror Stories of the Man-Beast, a 1987 short story anthology edited by Peter Haining
• Werewolf, a 2001 World of Darkness novel by Gherbod Fleming; the third installment in the Predator & Prey series

• The Werewolf, a 1933 treatise by Montague Summers
• Werewolf: A True Story of Demonic Possession, a 1991 non-fiction book by Ed Warren

• Werewolf (social deduction game), a party game
• Werewolf: The Apocalypse, a role-playing game
  • Werewolf: The Forsaken, a role-playing game, its successor
• Werewolf: The Last Warrior, a video game for Nintendo Entertainment System
• Werewolf (Dungeons & Dragons), a lycanthrope in the Dungeons & Dragons game

• Kamov Ka-50, a helicopter
• VMFA-122, a U.S. Marine Corps squadron
• Libahunt ("The Werewolf"), a 1912 Estonian play written by August Kitzberg
• Werewolf, a codename for a Fedora operating system release
• Werewolf, a variant of the Wolfsangel symbol

• Werwolf, a plan for a Nazi commando unit for the defence of Germany
• Werewolf syndrome, an abnormal amount of hair growth over the body
• Wolf man (disambiguation)
• Wolf Girl (disambiguation)