Chaos theory is a scientific theory describing erratic behaviour in certain nonlinear dynamical systems.

Chaos Theory may also refer to:

• Chaos Theory (album) by Jumpsteady.
• Chaos Theory (Escape Velocity album) by Escape Velocity.
• Tom Clancy's Splinter Cell: Chaos Theory, a video game.
• Chaos Theory (film).
• Chaos Theory (ER), a television series episode.
• Chaos Theory (CSI episode), for the 2nd season episode in the CBS television series CSI: Crime Scene Investigation.
• Chaos Theory (essays), a two-essay publication by Robert P. Murphy

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.