Discrete

Discrete may refer to:
 * Discrete particle or quantum in physics, for example in quantum theory
 * Discrete device, an electronic component with just one circuit element, either passive or active, other than an integrated circuit
 * Discrete group, a group with the discrete topology
 * Discrete category, category whose only arrows are identity arrows
 * Discrete mathematics, the study of structures without continuity
 * Discrete optimization, a branch of optimization in applied mathematics and computer science
 * Discrete probability distribution, a random variable that can be counted
 * Discrete space, a simple example of a topological space
 * Discrete spline interpolation, the discrete analog of ordinary spline interpolation
 * Discrete time, non-continuous time, which results in discrete-time samples
 * Discrete variable, non-continuous variable
 * Discrete pitch, a pitch with a steady frequency, rather than an indiscrete gliding, glissando or portamento, pitch