The structure of a thing is how the parts of it relate to each other, how it is "put together".
Structure may also refer to:
- Architectural structure, a man-made structure used or intended for supporting or sheltering any use or continuous occupancy
- Canopy (ecology) structure, organization or three-dimensional geometry of a plant canopy
- Community (ecology) structure, ecological organization of a biological community
- Protein structure or chemical structure, the three dimensional coordinates of the atoms within (macro) molecules
- Data structure, a way of storing data in a computer so that it can be used efficiently
- Mathematical structure on a set, additional mathematical objects that in some manner attach to the set, making it easier to visualize or work with, or endowing the collection with meaning or significance
- Structure (mathematical logic)
- Algebraic structure
- Social structure, a pattern of relations
- Structure and agency, two confronted theories about human behaviour
- Structural geology, the three dimensional distribution of rock bodies and their planar or folded surfaces, and their internal fabrics
- Deep structure - logical language structure in linguistics
- The Structure of Scientific Revolutions, a book by Thomas Kuhn on the history of science
- Structure (clothing store), a men's clothing store operated by Limited Brands until 2000, when it merged with Structure's women's clothing store Express to become ExpressMen. The brand name "Structure" was later sold to Sears in 2003, (branding used for men's and young men's apparel and accessories).
- Structure (journal), a scientific journal describing protein structures.
