Actium, i, n. A promontory and town in Epirus, on the Ambracian Gulf (now La Punta), where Augustus conquered Antony and Cleopatra, 31 B. C., and, in commemoration of it, repaired the temple of Apollo, which existed there, and revived the Actian games, Mel. 2, 3, 10; Plin. 4, 1, 2, § 5; Cic. Fam. 16, 6.

— A harbor in Corcyra, Cic. Att. 7, 2, 3.