Acerronia Polla was a servant and friend of Agrippina the Younger, the mother of Nero. She was drowned in AD 59, when an unsuccessful attempt was made at the same time to drown Agrippina. She may have been the daughter of Gnaeus Acerronius Proculus, consul in AD 37. The account of Cassius Dio is fundamentally the same, although he does indicate that the boat was in fact scuttled, and that Acerronia drowned. He also mentions nothing about Agrippina being rescued by a passing boat, and instead claims she swam all the way to shore on her own.