Gaius Rubellius Plautus (33-62) is a Roman noble and a political rival of Emperor Nero.

Through his mother Julia, he is a relative of the Julio-Claudian dynasty.

He is the grandson of Drusus (only son of Tiberius Caesar), and the great-grandson of Tiberius and his brother Drusus.

Through his great-grandmothers Vipsania Agrippina and Antonia Minor, he is also descended from Marcus Vipsanius Agrippa and Mark Antony but not from Augustus.

He is descended from Augustus' sister Octavia Minor, herself a great niece of Julius Caesar.