亚克兴角战役是罗马共和国的马克·安东尼与古埃及托勒密王朝法老克利奥帕特拉七世联军与屋大维之间一场决定性战役。此战发生于前31年9月2日，地点为希腊阿卡纳尼亚北部近亚克兴角的爱奥尼亚海海域。屋大维的舰队由玛尔库斯·维普撒尼乌斯·阿格里帕指挥，而安东尼的舰队则由他的爱人克利奥帕特拉七世所支持。

战役以屋大维胜利告终，促使他后来成为罗马帝国的统治者。

The Battle of Actium was the decisive confrontation of the Final War of the Roman Republic, a naval engagement between Octavian and the combined forces of Mark Antony and Cleopatra on 2 September 31 BC, on the Ionian Sea near the promontory of Actium, in the Roman province of Epirus Vetus in Greece. Octavian's fleet was commanded by Marcus Vipsanius Agrippa, while Antony's fleet was supported by the power of Queen Cleopatra of Ptolemaic Egypt.