Class

Class may refer to:

General

Class (education), a group of students attending a specific course or lesson
- Lessons, in education
- Classroom
Class (philosophy), an analytical concept used differently to group phenomena from grouping as 'types' or 'kinds'
Class (set theory), a set of sets came to be called a "class" as a result of work by Bertrand Russell and others in mathematics
The degree of the dual of a curve, in mathematics
Class (social), the hierarchical arrangement of individuals in society, usually defined by material wealth and occupation
Travel class, a quality of accommodation on public transport
Classes of United States Senators, for describing the schedules of elections for Senate seats
Class (biology), a taxonomic rank in biological classification
Hazard class, dangerous goods classification
Ship class, group of ships of similar design

Class (computer programming), or type of object, a fundamental concept of object-oriented programming
Java class file, the interpretable bytecode of a compiled Java program
Class attribute, a feature of many HTML and XHTML elements, typically to identify them for styles
Complexity class, a set of problems of related complexity in computational complexity theory
Class (warez), a defunct group in the warez scene