**Graph** may refer to:

- A graphic (such as a line chart, plot, chart or diagram) depicting the relationship between two or more variables used, for instance, in visualising scientific data.

In **mathematics**:

- Graph (mathematics), a set of vertices and edges
- Graph theory
- Graph of a function

In **computer science**:

- Graph (data structure), an abstract data type representing relationships or connections
- Graph (software), the name of a software application for mathematical plotting
- Conceptual graph, a model for knowledge representation and reasoning

**Other uses:**

- HMS Graph (P715), a submarine of the Royal Navy (United Kingdom)

### Famous quotes containing the word graph:

“In this Journal, my pen is a delicate needle point, tracing out a *graph* of temperament so as to show its daily fluctuations: grave and gay, up and down, lamentation and revelry, self-love and self-disgust. You get here all my thoughts and opinions, always irresponsible and often contradictory or mutually exclusive, all my moods and vapours, all the varying reactions to environment of this jelly which is I.”

—W.N.P. Barbellion (1889–1919)

“When producers want to know what the public wants, they *graph* it as curves. When they want to tell the public what to get, they say it in curves.”

—Marshall McLuhan (1911–1980)

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