This article is not about the Emperor Nero, who ruled the Roman Empire from AD 54 to AD 68.

Nero Julius Caesar Germanicus (AD 6–AD 33) was a close relative to the Roman Emperors of the Julio-Claudian dynasty.

He was born in AD 6 to Germanicus and Agrippina the elder. His paternal grandparents were Nero Claudius Drusus and Antonia Minor, daughter of Mark Antony and Octavia. His maternal grandparents were Marcus Vipsanius Agrippa and Julia Caesaris, daughter of Caesar Augustus.

Nero's siblings included four brothers (Tiberius and Gaius Julius, who died young; Drusus; and the future Emperor Caligula) and three sisters (Julia Livilla, Drusilla and Agrippina the younger).

Nero was uncle to Julia Drusilla and Emperor Nero Claudius Caesar Augustus Germanicus (born Lucius Domitius Ahenobarbus).

His father Germanicus was Heir Apparent to his own adoptive father Emperor Tiberius, but Germanicus predeceased the Emperor in 19. He was replaced as heir by Julius Caesar Drusus, son of Tiberius and his first wife Vipsania Agrippina. But he too predeceased the Emperor on July 1, 23.

Nero and his younger brother Drusus were the oldest adoptive grandsons of Tiberius. They jointly became Heirs Apparent. However, both were accused of treason along with their mother in AD 32. Nero was exiled to an island where he either starved himself to death or was murdered by order of the emperor in AD 33.