- Abelian variety, a complex torus that can be embedded into projective space
- Abstract variety, an intrinsically defined variety
- Algebraic variety, the basic object of study in algebraic geometry
- Affine variety, a subset of algebraic varieties
- Projective variety, a subset of algebraic varieties
- Quasiprojective variety, a subset of algebraic varieties (which includes projective and affine varieties)
- Analytic variety, an object much like an algebraic variety but defined as the zero set of finitely many (real- or complex-)analytic functions
- Variety (universal algebra), classes of algebraic structures defined by equations in universal algebra
[edit] Sciences
- Variety (botany), a formal rank in botanical taxonomic nomenclature
- Variety (cybernetics), the number of possible states of a system or of an element of the system
- Variety (linguistics), a concept that includes, for instance, dialects, standard language and jargon
- Plant variety (law), a legal rather than taxonomic term for a cultivar or hybrid protected by patent law
- "Variety", an informal (and incorrect and ambiguous) rather than taxonomic term for cultivar in horticulture
