Watcher or Watchers may refer to:
In print
- Watcher (angel) or Grigori, a class of fallen angels in Biblical apocrypha
- Watcher (comics), an extraterrestrial species who watches the universe in Marvel Comics
- Uatu, the Watcher
- The Watcher (1851 novel), a collection of short stories by Sheridan Le Fanu
- The Watcher (1981 novel), a 1981 novel written by Kay Nolte Smith
- Watchers (novel), a 1987 novel written by Dean Koontz
- The Watchers (Caiseal Mór), a series of novels from 2002 to 2003 written by Caiseal Mór
- The Watchers: The Rise of America's Surveillance State, a 2010 book by Shane Harris
In television, film and radio
- Watcher Entertainment, a digital media company
- The Watcher (TV series), a 1995 UPN TV series starring Sir Mix-a-Lot
- The Watcher (2000 film), a 2000 film directed by Joe Charbanic
- The Watcher (2016 film), a 2016 American horror film directed by Ryan Rothmaier
- Watcher (TV series), a 2019 South Korean TV series
- Watcher (Buffy the Vampire Slayer), a member of the Watcher's Council in the Buffy and Angel television series
- Watcher (Highlander), a secret organization that watches the Immortals in the Highlander series
- Watchers (film), a 1988 film directed by Jon Hess based on the novel by Koontz
- "The Watcher", first episode of the 1965 Doctor Who serial The Time Meddler
- Watcher (Doctor Who), a character in the 1981 Doctor Who serial Logopolis
- The Watchers (TV series), an announced ABC supernatural drama, by Nicholas Sparks
In music
- "The Watcher", a song by Enslaved from their 2008 album Vertebrae
- "The Watcher", a song by Hawkwind from their 1972 album Doremi Fasol Latido
- "The Watcher" (song), a song by Dr. Dre on his 1999 album The Chronic 2001
- The Watchers (album), a 2001 album by Royal Hunt
Other
- Watcher (angel), as mentioned in various religious sources
- Watcher (presence), a subscriber for presence information
- In the video game, Dark Void the Watchers appear as reptilians or the Annunaki