(Claudia) Livia Julia (c. 13 BCE – 31 CE) is the only daughter of Nero Claudius Drusus and Antonia Minor and elder sister of the Roman Emperor Claudius and younger sister of the general Germanicus, and thus the paternal aunt of the emperor Caligula.

She was named after her grandmother, Augustus' wife Livia Drusilla, and commonly known by her family nickname Livilla (the "little Livia").

She is twice married to the potential successor in the Julio-Claudian dynasty, first to Augustus' grandson Gaius Caesar (died 4 CE) and later to Tiberius' son Drusus (died 23 CE).

Allegedly, she helped her lover Sejanus in poisoning her husband and died shortly after Sejanus fell from power in 31 CE.