|Centuries:||7th century – 8th century – 9th century|
|Decades:||700s 710s 720s – 730s – 740s 750s 760s|
|Years:||727 728 729 – 730 – 731 732 733|
|730 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1483|
|Bahá'í calendar||−1114 – −1113|
|English Regnal year||N/A|
|Chinese calendar||己巳年 (Earth Snake)
3426 or 3366
— to —
庚午年 (Metal Horse)
3427 or 3367
|- Vikram Samvat||786–787|
|- Shaka Samvat||652–653|
|- Kali Yuga||3831–3832|
|Igbo calendar||−270 – −269|
|Japanese calendar||Tenpyō 2
|Minguo calendar||1182 before ROC
|Thai solar calendar||1273|
|Wikimedia Commons has media related to 730.|
Year 730 (DCCXXX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. The denomination 730 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.
- Charles Martel defeats the last independent dukedom of the Alamanni, and launches raids on the Saxons beyond the Rhine.
- Chinese Emperor Xuanzong of Tang has four palace walls in the northeast sector of the capital city Chang'an torn down and reassembled to construct a new Daoist abbey, the grounds of which were formerly a large garden for the governmental Bureau of Agriculture.
- September/October – Umayyad troops sack the Byzantine fortress of Charsianon
- December 9 – Battle of Marj Ardabil: the Khazars defeat and destroy an Umayyad army of some 25,000 men under al-Jarrah ibn Abdallah al-Hakami.
- Emperor Leo III of the Byzantine Empire orders the destruction of all icons, beginning the First Iconoclastic Period.
- Jia Dan, a Chinese scholar-official, general, geographer, and cartographer
- Zhang Xiaozhong, a general of the Chinese Tang Dynasty
- December 9 – al-Jarrah ibn Abdallah, Umayyad general and governor of Azerbaijan
- Yuwen Rong
- Zhang Shuo
- Peter of Cantabria
- Lantfrid, Duke of Alamannia