|Centuries:||1st century BC – 1st century – 2nd century|
|Decades:||20s 30s 40s – 50s – 60s 70s 80s|
|Years:||54 55 56 – 57 – 58 59 60|
|57 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||810|
|Bahá'í calendar||−1787 – −1786|
|English Regnal year||N/A|
|Chinese calendar||丙辰年 (Fire Dragon)
2753 or 2693
— to —
丁巳年 (Fire Snake)
2754 or 2694
|Coptic calendar||−227 – −226|
|- Vikram Samvat||113–114|
|- Shaka Samvat||N/A|
|- Kali Yuga||3158–3159|
|Igbo calendar||−943 – −942|
|Iranian calendar||565 BP – 564 BP|
|Islamic calendar||582 BH – 581 BH|
|Minguo calendar||1855 before ROC
|Thai solar calendar||600|
|Wikimedia Commons has media related to 57.|
Year 57 (LVII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Caesar and Piso (or, less frequently, year 810 Ab urbe condita). The denomination 57 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.
- Envoys from Cilicia come to Rome to accuse their late governor, Cossutianus Captio, of extortion; the Roman Senate is supported in the case by Publius Clodius Thrasea Paetus.
- Roman emperor Nero is also a Roman consul.
- In Britain, Quintus Veranius Nepos becomes governor in place of Aulus Didius Gallus. He begins a campaign against the Silures of south Wales.
- Also in Britain Venutius begins his rebellion against his wife Cartimandua.
- The Chinese emperor grants the king of Nakoku a golden seal, being the oldest evidence of writing in Japan. In return the king sent an envoy to China.
- Accession of Chinese emperor Han Mingdi.
- Accession of the Silla king Talhae.
- Paul of Tarsus writes his Second Epistle to the Corinthians and his Epistle to the Romans (probable date).