Stack may refer to:

Look up Stack or stack in Wiktionary, the free dictionary.

• 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

• 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

• 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

• 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

• 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

• 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

• 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

• All pages with titles beginning with Stack
• All pages with titles containing Stack
• Haystack (disambiguation)
• Stacker (disambiguation)
• Stacking (disambiguation)
• Stak (disambiguation)

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