CAOS is a high-level domain-specific programming language for the definition of extended cellular automata and their parallel simulation on shared and distributed memory computing architectures.

The acronym CAOS stands for Cells, Agents and Observers for Simulation, which are the main constituents of the language.

The development of CAOS originated at the University of Luebeck and is currently continued on a low scale at the University of Luebeck and the University of Hertfordshire