|Millennium:||1st millennium BC|
|Centuries:||2nd century BC – 1st century BC – 1st century|
|Decades:||80s BC 70s BC 60s BC – 50s BC – 40s BC 30s BC 20s BC|
|Years:||56 BC 55 BC 54 BC – 53 BC – 52 BC 51 BC 50 BC|
|53 BC by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishments and disestablishments categories|
|Establishments – Disestablishments|
|Gregorian calendar||53 BC|
|Ab urbe condita||701|
|Bahá'í calendar||−1896 – −1895|
|English Regnal year||N/A|
|Chinese calendar||丁卯年 (Fire Rabbit)
2644 or 2584
— to —
戊辰年 (Earth Dragon)
2645 or 2585
|Coptic calendar||−336 – −335|
|Ethiopian calendar||−60 – −59|
|- Vikram Samvat||4–5|
|- Shaka Samvat||N/A|
|- Kali Yuga||3049–3050|
|Igbo calendar||−1052 – −1051|
|Iranian calendar||674 BP – 673 BP|
|Islamic calendar||695 BH – 694 BH|
|Minguo calendar||1964 before ROC
|Thai solar calendar||491|
|Wikimedia Commons has media related to 53 BC.|
Year 53 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Messalla and Calvinus (or, less frequently, year 701 Ab urbe condita). The denomination 53 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.
- Consuls: Marcus Valerius Messalla and Gnaeus Domitius Calvinus.
- Parthian war:
- Gallic War:
- Julius Caesar defeats a revolt led by Ambiorix near Sabis (Northern Gaul).
- At Cenabum (modern Orléans) Roman merchants are massacred by the Carnutes.
- Vercingetorix, an Arverni chieftain, leads a revolt against Caesar in Central Gaul.
- Winter – Caesar enrols non-citizen soldiers in Gallia Transalpina, genesis of Legio V Alaudae. He increases his army to ten legions.
- Julius Caesar, Command (p. 20). Nic Fields, 2010. ISBN 978-1-84603-928-7