The Battle of Himera, supposedly fought on the same day as the Battle of Salamis, or at the same time as the Battle of Thermopylae, saw the Greek forces of Gelon, King of Syracuse, and Theron, tyrant of Agrigentum, defeat the Carthaginian force of Hamilcar the Magonid, ending a Carthaginian bid to restore the deposed tyrant of Himera. The alleged coincidence of this battle with the naval battle of Salamis and the resultant derailing of a Punic-Persian conspiracy aimed at destroying the Greek civilization is rejected by modern scholars. Scholars also agree that the battle led to the crippling of Carthage's power in Sicily for many decades. It was one of the most important battles of the Sicilian Wars.

Agrigento is a city on the southern coast of Sicily, Italy and capital of the province of Agrigento.