Britannica
Sources used in this answer
Where and when did the Battle of Actium take place?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
Augustus
Portrait of the emperor Augustus, marble, Roman, c. 14–37 ce; in the Metropolitan Museum of Art, New York City. Height 27.94 cm.
The Battle of Actium took place on September 2, 31 BCE. It was a naval engagement fought off a promontory in northern Acarnania, located on the western coast of Greece.1
The battle occurred at the entrance to the Ambracian Gulf, where the forces of Octavian (later known as the emperor Augustus) defeated the fleet of Mark Antony and Cleopatra, effectively establishing Octavian as the undisputed master of the Roman world.1