The Chaonians are an ancient Greek tribe that inhabit the region of northern Epirus located in the northwest of modern Greece and southern Albania.

On their southern frontier lies another Epirote kingdom, that of the Molossians, to their southwest stands the kingdom of the Thesprotians, and to their north live the Illyrian tribes.

According to Virgil, Chaon was the eponymous ancestor of the Chaonians.

By the 5th century BCE, they had conquered and combined to a large degree with the neighboring Thesprotians and Molossians.

The Chaonians are part of the Epirote League until 170 BCE when their territory is annexed by the Roman Republic.