Monad may refer to:
Philosophy
Monad (philosophy), a term meaning "unit" Monism, the concept of "one essence" in the metaphysical and theological theory Monad (Gnosticism), the most primal aspect of God in Gnosticism Great Monad, an older name for the taijitu symbol Monadologia Physica, by Immanuel Kant Monadology, by Gottfried Leibniz, a book about a basic unit of perceptual reality Monas Hieroglyphica, a 1564 book by John Dee describing a symbol of his own invention
Mathematics, science and technology
Monad (biology), a historical term for a simple unicellular organism
Monad (category theory), a construction in category theory
Monad (functional programming), functional programming constructs that capture various notions of computation Monad (homological algebra), a 3-term complex Monad (nonstandard analysis), the set of points infinitesimally close to a given point Monad shell, the code name for the PowerShell command line interface for Microsoft Windows
Fictional entities
Monads, megastructures in Robert Silverberg's 1971 novel The World Inside
Monad Proxy, a character in the 2006 anime series Ergo Proxy
John Monad, the title character of the 2007 television series John from Cincinnati Monad/Monado, a sword in the 2010 videogame Xenoblade Chronicles
Other uses
Monad (music), a single note or pitch
Monad University, in Hapur, Uttar Pradesh, India
The emblem of the technocracy movement
See also
Monade
Monadic (disambiguation) Monoid, in abstract algebra , for titles starting "Monad" or "Monadic"