Monad
Monad may refer to:
Philosophy
- Monad (philosophy), a term meaning "unit" used by philosophers to signify various entities
- Monadology by Gottfried Leibniz
- Monism, the concept of "one essence" in the metaphysical and theological theory
- Monad (Gnosticism), the most primal aspect of God in Gnosticism
- Monadologia Physica, by Immanuel Kant
Science and technology
- Monad (category theory), a construction in category theory
- Monad (functional programming), functional programming constructs that capture various notions of computation
- Monad (linear algebra), a 3-term complex
- Monad (non-standard analysis), the set of points infinitesimally close to a given point
- Monad shell, code name for the PowerShell command line interface for Microsoft Windows
- Monad (biology), a historical term for a simple unicellular organism