|Millennium:||1st millennium BC|
|8 BC by topic|
|Gregorian calendar||8 BC
|Ab urbe condita||746|
|Ancient Greek era||193rd Olympiad (victor)¹|
|Balinese saka calendar||N/A|
|Chinese calendar||壬子年 (Water Rat)
2689 or 2629
— to —
癸丑年 (Water Ox)
2690 or 2630
|Coptic calendar||−291 – −290|
|Ethiopian calendar||−15 – −14|
|- Vikram Samvat||49–50|
|- Shaka Samvat||N/A|
|- Kali Yuga||3093–3094|
|Iranian calendar||629 BP – 628 BP|
|Islamic calendar||648 BH – 647 BH|
|Julian calendar||8 BC
|Minguo calendar||1919 before ROC
|Seleucid era||304/305 AG|
|Thai solar calendar||535–536|
119 or −262 or −1034
— to —
120 or −261 or −1033
|Wikimedia Commons has media related to 8 BC.|
Year 8 BC was either a common year starting on Friday or Saturday or a leap year starting on Thursday (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 Wednesday of the Proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Censorinus and Gallus (or, less frequently, year 746 Ab urbe condita). The denomination 8 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.
- King Maroboduus becomes ruler of the Marcomanni and fights against the Roman Empire expansion in Bohemia.
- Arminius, son of a Cheruscan chieftain, is taken hostage to Rome where he receives a military education.
- After 20 years, Augustus initiated his second census of the Roman Empire.
- Sextilis, the eighth month of the early Julian Calendar, was renamed Augustus (August) by a decree of the Roman Senate in honor of the first Roman emperor, Augustus.
- November 27 – Horace, Roman poet (b. 65 BC)
- Maecenas, Roman politician and patron of the arts (b. 70 BC)
- Empress Xu
- "LacusCurtius • Res Gestae Divi Augusti (II)". penelope.uchicago.edu. Retrieved 2017-02-22.