| 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: | 16 BC 15 BC 14 BC – 13 BC – 12 BC 11 BC 10 BC |
| 13 BC by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 13 BC |
| Ab urbe condita | 741 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1856 – -1855 |
| Bengali calendar | -605 |
| Berber calendar | 938 |
| Buddhist calendar | 532 |
| Burmese calendar | -650 |
| Byzantine calendar | 5496 – 5497 |
| Chinese calendar | 丁未年 (2624/2684) — to —
戊申年(2625/2685) |
| Coptic calendar | -296 – -295 |
| Ethiopian calendar | -20 – -19 |
| Hebrew calendar | 3748 – 3749 |
| Hindu calendars | |
| - Bikram Samwat | 44 – 45 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 3089 – 3090 |
| Holocene calendar | 9988 |
| Iranian calendar | 634 BP – 633 BP |
| Islamic calendar | 654 BH – 652 BH |
| Japanese calendar | |
| Korean calendar | 2321 |
| Thai solar calendar | 531 |
Year 13 BC was a leap year starting on Wednesday (link will display the full calendar) of the Julian calendar.