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 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 "The Gatekeeper" (Moon Girl and Devil Dinosaur), an unaired episode of the 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 Bleed from Within from the 2018 album Era "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