This paper aims to analyze the idea of randomness in Greek philo-sophy since Empedocle to Plato to show determinism as unavoidable companion of most deterministic doctrines. Despite their adherence to determinism, even Plato and Aristotle introduce randomness to account for the various forms of reality, following so Empedocle and the atomists. There are as many contentions for randomness as for necessity in Greek and Latin thought.