Threshold may refer to:
Architecture
- Threshold (door), the sill of a door
Film and television
- Threshold (1981 film)
- Threshold (2003 film), an adaptation of the 1958 science fiction film It! The Terror from Beyond Space
- Threshold (TV series), an American science fiction drama series produced during 2005-2006
- "Threshold" (Stargate SG-1), an episode of the TV series
- "Threshold" (Star Trek: Voyager), an episode of the TV series
- Threshold Entertainment, a Hollywood Intellectual Property Management and Production Company
Literature
- Threshold Editions, a conservative imprint
- Threshold (Palmer novel), a science fiction novel by David R. Palmer
- Threshold (Sara Douglass novel), a fantasy novel
- Threshold, the first volume of the collected short fiction of Roger Zelazny
- Threshold (1990 novel), a science fiction novel by Chris and Janet Morris
- Threshold (comics), a comic book character
- Threshold (DC Comics), a comic book published by DC Comics
- Threshold (Doctor Who), an organization in Doctor Who comic strips
- Threshold, a science-fiction novel by Caitlín R. Kiernan
- Threshold, a Christian novel by Bill Myers
- Threshold, a science-fiction novel by Ben Mezrich
Music
- Threshold (band), a UK progressive metal band
- Threshold House, a record label created by Coil
- Threshold Records, a record label created by The Moody Blues
Albums
- Threshold (album), a 2006 album by HammerFall
- Thresholds (album), a 1992 album by Nocturnus
- Threshold, a 1997 album by Erik Norlander
Songs
- "Threshold", by Pocahaunted, 2010
- "Threshold", by Slayer on the album God Hates Us All, 2001
- "Threshold", by The Steve Miller Band from Book of Dreams, 1977
- "Threshold", by Turnover from Peripheral Vision, 2015
- "Threshold," from the Scott Pilgrim vs. the World soundtrack, 2010
- "The Threshold", by Connie Smith from Connie Smith, 1965
Science
Biology
- Absolute threshold
- Sensory threshold, a concept in psychology
- Threshold of pain, a concept in pain science
- Absolute threshold of hearing
- Masking threshold
- Odor detection threshold
- Dark adaptation threshold
- Flicker fusion threshold
- Action potential, a concept in neurophysiology
- Low-threshold spikes
- Renal threshold, the level at which a given substance in the blood is taken up by the kidneys and enters the urine
- Threshold expression
- Threshold potential
- Threshold limit value
- Aerobic threshold
- Anaerobic threshold
- Linear no-threshold model
- Seizure threshold
- Threshold model in toxicology
- Threshold (reference value)
- Transparency threshold
- Multi-threshold CMOS
- Threshold knowledge
- Quasi-threshold graph
- Threshold displacement energy
- Error threshold (evolution)
- Extinction threshold
- Thresholding (image processing), a method of image segmentation
- Lasing threshold, a concept in laser science
- Zero crossing threshold detector
- Threshold voltage
- Threshold energy
- Threshold detector with hysteresis
- Threshold cryptosystem
- Percolation threshold
- Threshold graph
- Ecological threshold
- Polygyny threshold model
- Threshold model (statistics)
- Threshold value (statistics)
Other meanings
- Threshold (online game), a roleplaying enforced MUD
- Displaced threshold, an aviation term
- Election threshold, a concept in voting systems: usually the minimum share of the vote which a political party requires to secure any representation
- Poverty thresholds (United States Census Bureau)
- Threshold, a game for the Atari 2600 video game system
- Threshold, a codename of the first two versions of Windows 10, 1507 and 1511.
- Threshold Audio, a manufacturer of high end audio amplifiers.