The Battle of the Great Plains (Latin: Campi Magni) was a battle between a Roman army commanded by Scipio Africanus and a combined Carthaginian-Numidian army late in the Second Punic War. It was fought on the plains south of Bulla Regia around the upper Bagradas River (the classical name of the Medjerda).

Following the battle, the Carthaginians had little choice but to sue for peace with Rome. Scipio proposed modest terms for the Carthaginians in a peace treaty, but while the Carthaginians were still considering the treaty, they suddenly decided to recall Hannibal, who had an army of elite veterans loyal to his command, from Italy, for one more stand against Rome in an encounter that would became the Battle of Zama, which ended the Second Punic War and completed the legend of Scipio Africanus, who had become one of Rome's greatest generals.