Marcus Cornelius Fronto, best known as Fronto, was a Roman grammarian, rhetorician, and advocate. Of Berber origin, he was born at Cirta in Numidia. He was suffect consul for the nundinium of July-August 142 with Gaius Laberius Priscus as his colleague. Emperor Antoninus Pius appointed him tutor to his adopted sons and future emperors, Marcus Aurelius and Lucius Verus.