| Millennium: | 1st millennium BC |
|---|---|
| Centuries: | 2nd century BC – 1st century BC – 1st century |
| Decades: | 40s BC 30s BC 20s BC – 10s BC – 0s BC 0s 10s |
| Years: | 15 BC 14 BC 13 BC – 12 BC – 11 BC 10 BC 9 BC |
| 12 BC by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 12 BC |
| Ab urbe condita | 742 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1855 – -1854 |
| Bengali calendar | -604 |
| Berber calendar | 939 |
| Buddhist calendar | 533 |
| Burmese calendar | -649 |
| Byzantine calendar | 5497 – 5498 |
| Chinese calendar | 戊申年 (2625/2685) — to —
己酉年(2626/2686) |
| Coptic calendar | -295 – -294 |
| Ethiopian calendar | -19 – -18 |
| Hebrew calendar | 3749 – 3750 |
| Hindu calendars | |
| - Bikram Samwat | 45 – 46 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 3090 – 3091 |
| Holocene calendar | 9989 |
| Iranian calendar | 633 BP – 632 BP |
| Islamic calendar | 652 BH – 651 BH |
| Japanese calendar | |
| Korean calendar | 2322 |
| Thai solar calendar | 532 |
Year 12 BC was a common year starting on Friday (link will display the full calendar) of the Julian calendar.