|772 by topic|
|Ab urbe condita||1525|
|Balinese saka calendar||693–694|
|Chinese calendar||辛亥年 (Metal Pig)|
3468 or 3408
— to —
壬子年 (Water Rat)
3469 or 3409
|- Vikram Samvat||828–829|
|- Shaka Samvat||693–694|
|- Kali Yuga||3872–3873|
|Japanese calendar||Hōki 3|
|Minguo calendar||1140 before ROC|
|Seleucid era||1083/1084 AG|
|Thai solar calendar||1314–1315|
898 or 517 or −255
— to —
899 or 518 or −254
Year 772 (DCCLXXII) was a leap year starting on Wednesday (link will display the full calendar) of the Julian calendar. The denomination 772 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.
- Saxon Wars: King Charlemagne leads a Frankish expedition from the Middle Rhine into disputed territory lost by the Franks in 695. He starts a campaign against the Saxons and seizes Eresburg, destroying the Irminsul (Saxon sacred tree) near Paderborn. Charlemagne devastates several major Saxon strongholds, and forces them to retreat beyond the Weser River. After negotiating with some Saxon nobles and obtaining hostages, he installs a number of garrisons.
- King Desiderius of the Lombards, enraged by the repudiation by Charlemagne of his daughter Desiderata, proclaims Gerberga's sons lawful heirs to the Frankish throne. He attacks Pope Adrian I for refusing to crown them, and invades the Duchy of the Pentapolis. Desiderius marches on Rome, and Adrian turns to the Franks for military support.
- In England, King Offa of Mercia attempts to rule Kent directly, possibly to depose his rival Egbert II (approximate date).
- Abbasid caliph Al-Mansur completes construction of the garrison city of al-Rāfiqah adjacent to Raqqa.
- February 1 – Pope Stephen III dies after a 3½-year reign, in which he has approved the acceptable reverence of icons in the Eastern Church. He is succeeded by Adrian I (also referred to as Hadrian) as the 95th pope of Rome.
- Abbasid caliph Al-Mansur orders Christians and Jews in Jerusalem to be stamped on their hands with a distinctive symbol.
- Bai Ju Yi, Chinese poet and official (d. 846)
- Charles the Younger, son of Charlemagne (d. 811)
- Cui Qun, chancellor of the Tang Dynasty (d. 832)
- Cui Zhi, chancellor of the Tang Dynasty (d. 829)
- Li Ao, Chinese philosopher and prose writer (d. 841)
- Liu Yuxi, Chinese poet and philosopher (d. 842)
- Song Ruoxian, Chinese scholar, lady-in-waiting and poet (d. 835)
- February 1 – Pope Stephen III
- Abu Hanifa, founder of the Sunni Hanafi school (b. 702)
- Amalberga of Temse, Lotharingian nun and saint (b. 741)
- Dōkyō, Japanese Buddhist monk (b. 700)
- Dúngal mac Cellaig, king of Osraige (Ireland)
- Zhu Xicai, general of the Tang Dynasty