Brutus \b-ru-tus\ as a boy's name is of Latin origin, and the meaning of Brutus is "dull, stupid". From an old Roman family name, borne most notably by statesman Marcus Junius Brutus, who was one of the assassions of Julius Caesar. The name is only seldom used due to its association with the word "brute".
Brutus has 1 variant form: Bruto.