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A gatekeeper is a person who controls access to something.

Gatekeeper or gatekeeping may also refer to:

Computing

• H.323 Gatekeeper, a virtual network switch that manages a H.323 zone
• GNU Gatekeeper, an H.323 gatekeeper implementation
• GateKeeper, an MSN Chat authentication type
• Gatekeeper (macOS), a security feature of Apple's macOS operating system

Science

• Gatekeeper butterfly (Pyronia tithonus), a European brown butterfly
• Gatekeeper neuron, a type of neuron in synaptic gating
• Gatekeeper gene, a gene type that regulates apoptosis and is relevant in the genetics of cancer

Popular culture

• Gate Keepers, a 1999 video game and manga, as well as a 2000 anime series
• Gate Keepers 21, a 2002 OVA sequel to the Gate Keepers anime series
• GateKeeper (roller coaster), a roller coaster at Cedar Point amusement park in Ohio
• Gatekeeper (Fire Emblem), a character in the 2019 video game Fire Emblem: Three Houses
• Gatekeepers (game show), a 2010 Singaporean Chinese language game show
• The Gatekeeper, a 2002 film by John Carlos Frey
• The Gatekeeper, a 2024 Philippine horror film by Dean Rosen and Matthew Rosen

• The Gatekeepers (book), a 2002 book by Jacques Steinberg on admissions to college
• The Gatekeepers (film), a 2012 Israeli documentary film directed by Dror Moreh
• The Power of Five (released as The Gatekeepers in the United States), a series of five fantasy novels by Anthony Horowitz in 2005–2012
• Atmosfear: The Gatekeeper, a 2004 video board game, the first DVD version of the Atmosfear series
• Clare Langtree the Gatekeeper, a character in the 2006 television series Power Rangers: Mystic Force
• Zuul, an evil demigod in the 1984 film Ghostbusters, who calls himself "the Gatekeeper" when possessing Dana

Sports

• Gatekeeper (boxing), a professional boxer who is considered a test for aspiring boxers
• St. Louis GateKeepers, a men's roller derby team based in St. Louis, Missouri

Music

• The Gatekeeper, also known as Frukwan, a member of the hip-hop group Gravediggaz
• Gatekeeper (band), an American experimental electronic duo from Chicago
• "Gatekeeper", a song by As I Lay Dying from the 2019 album Shaped by Fire
• "Gatekeeper", a song by Celldweller from the 2016 album Soundtrack for the Voices in My Head Vol. 03
• "Gatekeeper", a song by Jessie Reyez from the 2017 EP Kiddo
• "Gatekeeper", a song by Leslie Feist from the 2004 album Let It Die
• "Gatekeeper", a song by Within Temptation from the 1997 album Enter

Other

• Gatekeeping (communication), a person or organization who manages or constrains a flow of knowledge
• Gatekeeper state, a concept in the writings of Frederick Cooper describing unstable post-independence states in Africa
• Gatekeeper parent, a parent who controls the relationship between a child and their other parent in family law
• Gatekeeper physician, a primary care physician, with a role of rationing patient access to specialized medicine

• Disambiguation pages