|Millennium:||1st millennium BC|
|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:||67 BC 66 BC 65 BC – 64 BC – 63 BC 62 BC 61 BC|
|64 BC by topic|
|Gregorian calendar||64 BC|
|Ab urbe condita||690|
|Ancient Egypt era||XXXIII dynasty, 260|
|- Pharaoh||Ptolemy XII Auletes, 17|
|Ancient Greek era||179th Olympiad (victor)¹|
|Chinese calendar||丙辰年 (Fire Dragon)
2633 or 2573
— to —
丁巳年 (Fire Snake)
2634 or 2574
|Coptic calendar||−347 – −346|
|Ethiopian calendar||−71 – −70|
|- Vikram Samvat||−7 – −6|
|- Shaka Samvat||N/A|
|- Kali Yuga||3038–3039|
|Iranian calendar||685 BP – 684 BP|
|Islamic calendar||706 BH – 705 BH|
|Minguo calendar||1975 before ROC
|Seleucid era||248/249 AG|
|Thai solar calendar||479–480|
|Wikimedia Commons has media related to 64 BC.|
Year 64 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Caesar and Figulus (or, less frequently, year 690 Ab urbe condita). The denomination 64 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.
- Servilius Rullus, Roman Republic tribune, proposes an agrarian reform law.
- Pompey destroys the kingdom of Pontus; Mithridates VI commits suicide after escaping to the Crimea.
- Pompey first annexed Syria, then captured Jerusalem, annexing Judea.
- April 1 - The birthday of Jeannie (Barbara Eden) in the TV series I Dream of Jeannie. The date is finally revealed to her by Major Roger Healy (Bill Daily) at the end of the episode titled, "My Master, the Great Caruso", which originally aired on December 5, 1966.