Gaius Plautius Decianus was a Roman general and politician who served as consul once in 329 BC.
In 329 BC, Plautius was elected to his first and only consulship, serving alongside Lucius Aemilius Mamercinus, his patrician colleague.
In response, the senate sent two armies led by the consuls to deal with the rebellion, with one, led by the consul Lucius Papirius Crassus defeating the army of Vaccus in pitched battle, and the second one under the command of Lucius Plautius Venox marching to Fundi and accepting the surrender of the city.
When the senate heard word of this capture, they ordered Plautius to tear down the fortifications of Privernum and place a sizable Roman garrison in the city, and also gave permission for the consuls to celebrate a triumph for their victory.
After Plautius and Aemilius, now known as "Privernas" because of the victory, had triumphed, Vitruvius Vaccus and his associates were executed and his lands in Rome were seized.