|Millennium:||1st millennium BC|
|35 BC by topic|
Year 35 BC was either a common year starting on Thursday or Friday or a leap year starting on Wednesday, Thursday or Friday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a common year starting on Thursday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Cornificius and Sextus (or, less frequently, year 719 Ab urbe condita). The denomination 35 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
- Illyria becomes a Roman province. Gaius Julius Caesar Octavian conducts a rendezvous with the Roman fleet under Marcus Vipsanius, which is engaged in clearing the Dalmatian coast of piracy.
- Pannonia is attacked by Octavian Caesar; who conquered and sacked the stronghold Siscia (Sisak) of the Segestani, which is taken after a 30-day siege. The country is however, definitely subdued until 9 BC.
- Sextus Pompeius defeats with three legions Gaius Furnius, the governor of Asia, and seized Nicaea and Nicomedia (modern Izmit).
- Marcus Titius arrived in Syria with a large army and marched to Asia Minor, Sextus is caught in Miletus and executed without trial.
- Aristobulus III of Judea, high priest (drowned) (b. 53 BC)
- Sextus Pompeius, executed in Miletus (b. c. 67 BC)