Stack

Stack may refer to:

Places

 * Stack Island, an island game reserve in Bass Strait, south-eastern Australia, in Tasmania’s Hunter Island Group
 * Blue Stack Mountains, in Co. Donegal, Ireland

People

 * Stack (surname) (including a list of people with the name)
 * Parnell "Stacks" Edwards, a key associate in the Lufthansa heist
 * Robert Stack Pierce (1933–2016), an American actor and baseball player
 * Robert Stack (1919 – 2003), and American actor and television show host
 * Brian "Stack" Stevens (1941–2017), a Cornish rugby player

Arts, entertainment, and media

 * Stack magazine, a bimonthly publication about high school sports
 * Stacks (album), a 2005 album by Bernie Marsden
 * Stacks, trailer parks that were made vertical, in the film Ready Player One

Computing

 * Stack (abstract data type), abstract data type and data structure based on the principle of last in first out
 * Stack (Haskell), a tool to build Haskell projects and manage their dependencies
 * Stack in Macintosh, one of a collection of documents created with HyperCard (as in a stack of virtual cards)
 * Stack in LiveCode, one of a collection of program scripts created with LiveCode's Transcript programming language
 * Call stack, stack data structure that stores information about the active subroutines of a computer program
 * Stack machine, an architecture centered around a pushdown stack
 * Protocol stack, a particular software implementation of a computer networking protocol suite
 * Solution stack, a group of software systems, increasing in abstraction from bottom to top
 * Stack-based memory allocation, a memory allocation scheme based on the principle of "last in, first out"
 * Stacks (Mac OS), a folder view on the Dock of macOS
 * Stacks blockchain, a Bitcoin smart contract platform

Science and technology

 * Stack (geology), a large vertical column of rock in the sea
 * Stack (mathematics), a sheaf that takes values in categories rather than sets
 * Algebraic stack, a special kind of stack commonly used in algebraic geometry
 * Stacks Project, an open source collaborative mathematics textbook writing project
 * Stacking (chemistry), or pi stacking, attractive, noncovalent interactions between aromatic rings
 * Yellow stackhousia, a plant
 * The stack (philosophy), a political and design theory of planetary-scale computation coined by Benjamin H. Bratton
 * Stack, an assembled multistage rocket
 * Stack (microelectronics), a two-layer gate insulator in MOSFET, usually high-κ-oxide over SiO2

Transportation

 * Operation Stack, parking lorries on the M20 in Kent, England, when Channel crossings are disrupted
 * Stack interchange, a free-flowing grade-separated junction between two roads
 * The Stack, the interchange of I-10 and I-17 in Phoenix, Arizona

Other uses

 * Stack Ltd, the company that owns 0verflow
 * Stack (unit), a US unit of volume for stacked firewood
 * Amp stack, of guitar amplifiers
 * Library stack, compactly spaced bookshelves in libraries
 * Smoke stack or chimney
 * Flue-gas stack, the industrial terminology for an industrial plant chimney
 * Funnel (ship), the smokestack or chimney on a ship
 * Stack effect, the movement of air into and out of buildings, chimneys, flue-gas stacks, or other containers