|Centuries:||1st century – 2nd century – 3rd century|
|Decades:||130s 140s 150s – 160s – 170s 180s 190s|
|Years:||161 162 163 – 164 – 165 166 167|
|164 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||917|
|Chinese calendar||癸卯年 (Water Rabbit)
2860 or 2800
— to —
甲辰年 (Wood Dragon)
2861 or 2801
|Coptic calendar||−120 – −119|
|- Vikram Samvat||220–221|
|- Shaka Samvat||86–87|
|- Kali Yuga||3265–3266|
|Iranian calendar||458 BP – 457 BP|
|Islamic calendar||472 BH – 471 BH|
|Minguo calendar||1748 before ROC
|Seleucid era||475/476 AG|
|Thai solar calendar||706–707|
Year 164 (CLXIV) was a leap 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 Macrinus and Celsus (or, less frequently, year 917 Ab urbe condita). The denomination 164 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.
- The governor of Syria, Avidius Cassius, one of Lucius Verus' generals, crosses the Euphrates and invades Parthian territory.
- Ctesiphon is captured by the Romans, but returned to the Parthians after the end of the war.
- The Antonine Wall in Scotland is abandoned by the Romans.
- A law is passed protecting property brought into a marriage by the wife.
- Marcus Aurelius gives his daughter Lucilla in marriage to his co-emperor Lucius Verus.
- Seleucia on the Tigris is destroyed.