CoSMoS]is a UK funded research project seeking do build capacity in generic modelling tools and simulation techniques for complex systems. Its acronym stands for Complex Systems Modelling and Simulation. This is a four-year project, running from 2007 to 2011 as a collaboration between the University of York and Kent, with further collaborations from the University of Abertay Dundee and Bristol Robotics Laboratory.

The cosmos (, ) is the universe regarded as a complex and orderly system; the opposite of chaos. The philosopher Pythagoras used the term cosmos for the order of the universe, but the term was not part of modern language until the 19th century geographer and polymath, Alexander von Humboldt, resurrected the use of the word from the ancient Greek, assigned it to his multi-volume treatise, Kosmos, and, along the way, influenced our present and somewhat holistic perception of the universe as one interacting entity.

Cosmos generally refers to an orderly or harmonious system.