Diagram (disambiguation)

A diagram is a symbolic representation of information using visualization techniques.

Diagram or Diagrams may also refer to:
 * Diagram (category theory), categorical analogue of an indexed family in set theory
 * Diagram (mathematical logic), proving useful properties of a theory
 * Diagrams (band), British rock band
 * Ophite Diagrams, esoteric ritual diagrams used by the Ophite sect of Gnosticism