The structure of a thing is how the parts of it relate to each other, how it is "assembled".
Structure may also refer to:
- Architectural structure, a man-made structure used or intended for supporting or sheltering any use or continuous occupancy
- Canopy (biology) structure, organization or three-dimensional geometry of a plant canopy
- Community (ecology) structure, ecological organization of a biological community
- Structure (journal), a scientific journal describing protein structures
- Structure, a journal on form and function in modern biology
- Chemical structure, the spatial arrangement of atoms and bonds in a molecule
- The spatial arrangement of ions, atoms, or molecules in condensed matter
- Structuralism, the theory that elements of human culture must be understood in terms of their relationship to a larger, overarching system or structure
- Structural linguistics, an approach to linguistics originating from the work of Ferdinand de Saussure, a part of the overall approach of structuralism
- Deep structure and surface structure, concepts in linguistics, specifically the study of syntax in the Chomskyan tradition
- Social structure, a pattern of social arrangements in society
- Structural functionalism, a theory of society as a system whose parts work together to promote solidarity and stability
- Functional structuralism, a theory of society that deduces structure from function
- Structural anthropology, a theory of social structure in primitive societies, strongly associated with the work of Claude Lévi Strauss
- Biogenetic structuralism, a theory of anthropology grounded in neuroscience
- Structuration theory, a theory of social systems based in the analysis of both structure and agents
- Structure and agency, two confronted theories about human behaviour
- Base and superstructure, two parts of a Marxist analysis of society
- Structural Marxism, an approach to Marxism based on structuralism, associated with Louis Althusser
- Structuralism (architecture), a structuralist critique of architecture
- Structuralist film theory, a branch of film theory rooted in structuralism
- Post-structuralism, the theory that structuralism evolved into
- Dramatic structure, the way dramatic works, such as plays or films, are organized
- Narrative structure, the order and manner in which a narrative is presented to a reader, listener, or viewer
- Financial structure, the area of finance dealing with monetary decisions that business enterprises make and the tools and analysis used to make these decisions
- Capital structure, the way a corporation finances its assets through a combination of equity, debt, or hybrid securities
- Structured finance, a sector of finance created to help provide increased liquidity or funding sources to markets