| Centuries: | 2nd century BC - 1st century BC - 1st century |
| Decades: | 90s BC 80s BC 70s BC - 60s BC - 50s BC 40s BC 30s BC |
| Years: | 66 BC 65 BC 64 BC - 63 BC - 62 BC 61 BC 60 BC |
| 63 BC by topic | |
| Politics | |
| State leaders - Sovereign states | |
| Birth and death categories | |
| Births - Deaths | |
| Establishments and disestablishments categories | |
| - Disestablishments | |
| Gregorian calendar | 63 BC |
| Ab urbe condita | 691 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1906 – -1905 |
| Berber calendar | 888 |
| Buddhist calendar | 482 |
| Burmese calendar | -700 |
| Chinese calendar | 2574/2634 ([[Sexagenary cycle|]]年) — to —
2575/2635([[Sexagenary cycle|]]年) |
| Coptic calendar | -346 – -345 |
| Ethiopian calendar | -70 – -69 |
| Hebrew calendar | 3698 – 3699 |
| Hindu calendars | |
| - Vikram Samvat | -7 – -6 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 3039 – 3040 |
| Holocene calendar | 9938 |
| Iranian calendar | 684 BP – 683 BP |
| Islamic calendar | 705 BH – 704 BH |
| Japanese calendar | |
| - Imperial Year | Kōki 598 (皇紀598年) |
| Julian calendar | -17 |
| Korean calendar | 2271 |
| Thai solar calendar | 481 |
Events
By place
Rome
- Roman annexation of Judea as a client kingdom. King Judah Aristobulus II removed from power, while his brother John Hyrcanus II becomes king under Roman suzerainty.
- Julius Caesar elected Pontifex Maximus.
- Marcus Tullius Cicero is senior consul. He is the first novus homo (new man) to be elected to the consulship in 31 years.
- Cato the younger is tribune of the people.
- Catiline's conspiracy against the Roman Republic.
Births
- September 23 — Augustus Octavius Caesar, first Roman Emperor
- Strabo — Greek historian, geographer and philosopher
- Didymus Chalcenterus — Greek scholar and grammarian (approximate date)
- Marcus Vipsanius Agrippa — Roman stateman and general
- Pharnaces II of Pontus — King of Pontus
Deaths
- Publius Cornelius Lentulus Sura, Catiline conspirator
- Mithridates VI, King of Pontus
- Quintus Caecilius Metellus Pius, pontifex maximus and general
