|Centuries:||7th century – 8th century – 9th century|
|Decades:||700s 710s 720s – 730s – 740s 750s 760s|
|Years:||730 731 732 – 733 – 734 735 736|
|733 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1486|
|Bahá'í calendar||−1111 – −1110|
|English Regnal year||N/A|
|Chinese calendar||壬申年 (Water Monkey)
3429 or 3369
— to —
癸酉年 (Water Rooster)
3430 or 3370
|- Vikram Samvat||789–790|
|- Shaka Samvat||655–656|
|- Kali Yuga||3834–3835|
|Igbo calendar||−267 – −266|
|Japanese calendar||Tenpyō 5
|Minguo calendar||1179 before ROC
|Thai solar calendar||1276|
|Wikimedia Commons has media related to 733.|
|This article does not cite any references or sources. (June 2012)|
Year 733 (DCCXXXIII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. The denomination 733 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.
- Emperor Leo III confiscates the papal territories in Sicily and Calabria (Southern Italy) from which most pope Gregory III has his income tax derived. He transfers ecclesiastical jurisdiction in the former Praetorian prefecture of Illyricum to Anastasius, patriarch of Constantinople, Gregory begins his support of a revolt in Italy against iconoclasm. By now the break between the papacy and the Byzantine Empire is almost complete.
- Duke Eudes of Aquitaine, aged almost 80, abdicates and retires to a monastery. His lands are being divided between his sons Hunald and Hatton who continue the conflict with Charles Martel, mayor of the palace of Neustria and Austrasia. Battles at Benest in Charente and La Rochefoucauld (near Angoulême) where Charles probably defeats the Aquitainians. He also campaigns against the Burgundians.
- Umayyad conquest of Hispania: Muslim forces under Abd al-Malik ibn Katan al-Fihri, governor (wali) of Al-Andalus, crosses the Pyrenees and ravaging both sides of the mountains. He establishes colonies along the Ebro Valley and within Basque territory. The Moorish main military efforts are in Catalonia, Aragon, Navarre and Septimania (Southern France), strengthening the towns already in their hands.
- Duke Audelais of Benevento and his minor son Gisulf are deposed by king Liutprand of the Lombards. He is succeeded by Gregory who becomes ruler of Benevento.
- Eochaid mac Echdach, king of Dál Riata (modern Scotland)
- Li Yuanhong, chancellor of the Tang Dynasty
- Mildthryth, Anglo-Saxon abbess (approximate date)
- Muhammad al-Baqir, imam and descendant of Muhammad (b. 676)
- Yamanoue no Okura, Japanese poet (approximate date)