Cato, Marcus Porcius (95–46 B.C.), called the Younger, a Roman general and statesman. Like Cato the Censor, his great-grandfather, Cato the Younger was a popular man known for his strict integrity. Throughout his life he held to the principles of Stoic philosophy.

Cato joined Cicero in denouncing the conspirator Catiline and was an opponent of the Triumvirate—the group, composed of Pompey, Crassus, and Julius Caesar, that assumed control of Rome in 60 B.C. To get rid of him, the triumvirs sent Cato in 58 B.C. to take possession of Cyprus for Rome.

Cato sided with Pompey in the civil war that broke out between Caesar and Pompey. He finally withdrew his army to Utica, in Africa, where he kept up a hopeless defense against Caesar's forces until the armies of his followers could escape. Then Cato killed himself rather than surrender.