Incidence may refer to:
Economics Benefit incidence, the availability of a benefit Expenditure incidence, the effect of government expenditure upon the distribution of private incomes Fiscal incidence, the economic impact of government taxation and expenditures on the economic income of individuals Tax incidence, analysis of the effect of a particular tax on the distribution of economic welfare
Mathematics Incidence algebra, associative algebra used in combinatorics, a branch of mathematics Incidence geometry, the study of relations of incidence between various geometrical objects Incidence (geometry), the binary relations describing how subsets meet Incidence (graph), in graph theory, a quality of some vertex-edge pairs Incidence list, a concept in graph theory Incidence matrix, a matrix that shows the relationship between two classes of objects Incidence structure, a feature of combinatorial mathematics Cumulative incidence, a measure of frequency
Other uses Angle of incidence, a measure of deviation of something from "straight on" Incidence (epidemiology), a measure of the risk of developing some new condition within a specified period of time Plane of incidence, relating to optical reflection Incidence (video game), a minimalist golfing style game by ScrollView Games
See also Incidents, 1987 book Incident (disambiguation)