Year 147 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Aemilianus and Drusus (or, less frequently, year 607 Ab urbe condita). The denomination 147 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.

• Corlea Trackway completed.

• Scipio Aemilianus takes command of the Siege of Carthage.
• In Lusitania, Hispania, the Celtic king Viriathus, rallies Lusitanian resistance to Rome.

• Demetrius II of Syria returns to Syria (approximate date).
• Jonathan Maccabaeus conquers Joppa.

• Macedonia becomes a part of the Roman Empire.

• Bo, Chinese empress of the Western Han Dynasty