Year 68 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Metellus/Vatia and Rex (or, less frequently, year 686 Ab urbe condita). The denomination 68 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.

• Arsinoe IV of Egypt, daughter of Ptolemy XII (and probably Cleopatra V) (d. 41 BC)

• Antiochus of Ascalon, Greek philosopher (b. c. 130 BC)
• Cornelia, wife of Julius Caesar (b. 94 BC)
• Huo Guang, official of the western Han Dynasty
• Lucius Caecillius Metellus, Roman consul