|Centuries:||7th century – 8th century – 9th century|
|Decades:||730s 740s 750s – 760s – 770s 780s 790s|
|Years:||763 764 765 – 766 – 767 768 769|
|766 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1519|
|Bahá'í calendar||−1078 – −1077|
|English Regnal year||N/A|
|Chinese calendar||乙巳年 (Wood Snake)
3462 or 3402
— to —
丙午年 (Fire Horse)
3463 or 3403
|- Vikram Samvat||822–823|
|- Shaka Samvat||688–689|
|- Kali Yuga||3867–3868|
|Igbo calendar||−234 – −233|
|Japanese calendar||Tenpyō-jingo 2
|Minguo calendar||1146 before ROC
|Thai solar calendar||1309|
|Wikimedia Commons has media related to 766.|
Year 766 (DCCLXVI) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. The denomination 766 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.
- Karluks, defeat Turgesh. Most of Turkestan (former Onok territory) under Karluk rule except west of Lake Aral where a loose confederation named Oguz is about to emerge.
- Unsuccessful Abbasid siege of the Byzantine fortress of Kamacha.
- August 25 – After discovering a plot against him involving 19 high-ranking officials, Byzantine emperor Constantine V publicly humiliates the conspirators in the Hippodrome of Constantinople, before executing the two leaders and blinding and exiling the rest.
- January 1 – Ali ar-Ridha, Shia Imam (d. 818)
- February – Al-Fadl ibn Yahya al-Barmaki, Abbasid governor (d. 808)
- August 25 – Constantine Podopagouros and his brother Strategios Podopagouros
- Muhammad ibn al-Ash'ath al-Khuza'i, Abbasid general and governor