|Centuries:||6th century – 7th century – 8th century|
|Decades:||600s 610s 620s – 630s – 640s 650s 660s|
|Years:||627 628 629 – 630 – 631 632 633|
|630 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1383|
|Bahá'í calendar||-1214 – -1213|
|English Regnal year||N/A|
|Chinese calendar||己丑年 (Earth Ox)
3326 or 3266
— to —
庚寅年 (Metal Tiger)
3327 or 3267
|- Vikram Samvat||686–687|
|- Shaka Samvat||552–553|
|- Kali Yuga||3731–3732|
|Igbo calendar||-370 – -369|
|Minguo calendar||1282 before ROC
|Thai solar calendar||1173|
|Wikimedia Commons has media related to 630.|
Year 630 (DCXXX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. The denomination 630 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.
- March 21 – Emperor Heraclius returns the True Cross, one of the holiest Christian relics, to Jerusalem. He tries to promote Monothelitism which is rejected by the Christians.
- Heraclius issues in a decree that all Jews must become Christian; a massacre follows around Jerusalem and in Galilee (Israel), some survivors fleeing to the Dara'ah area.
- Chorpan Tarkhan, general of the Khazars, invades and devastates Armenia. He defeats a Persian cavalry force (10,000 men) send by Shahrbaraz to repel the invasion.
- King Olof Trätälja of the House of Yngling founds a colony in Vermelandia. He is expelled from his native West Götaland (modern Sweden) (according to the Ynglingatal).
- King Ricberht of East Anglia dies and is succeeded by Sigeberht who returns from exile in France. He rules together with his kinsman Ecgric, re-establishing Christianity.
- King Penda of Mercia besieges Exeter (South West England). King Cadwallon ap Cadfan of Gwynedd lands with a force nearby and negotiates an alliance with Penda.
- Eanswith, daughter of king Eadbald of Kent, founds the Benedictine Folkestone Priory, the first nunnery in England.
- April 27 – King Ardashir III, age 9, is murdered after a 18 months reign. He is succeeded by Shahrbaraz who becomes ruler (shah) of the Persian Empire.
- June 9 – Shahrbaraz is killed and succeeded by Borandukht, daughter of former king Khosrau II. She ascends the throne as 26th monarch of Persia.
- December 11 – An Muslim army (10,000 men) march on Mecca which surrender. Muhammad captures the city and makes it the spiritual center of Islam.
- Battle of Hunayn: Muhammad defeats the Bedouin tribe of Hawazin (12,000 men) in a valley on one of the roads leading to Ta'if (Western Arabia).
- Siege of Ta'if: Muhammad besieges Ta'if and brings battering rams and catapults to succumbs the fortress city, but is unable to penetrate it.
- Illig Qaghan, ruler (khagan) of the Eastern Turkic Khaganate, is captured by Li Jing during the campaign against the Eastern Tujue.
- Xuanzang, Chinese Buddhist monk, travels across the Gobi Desert to Kumul. Following the Tian Shan (Central Asia) westwards, he arrives in Turpan.
- Alhfrith, king of Deira (approximate date)
- November 7 – Constans II, Byzantine emperor (d. 668)
- Di Renjie, chancellor of the Tang Dynasty (d. 700)
- Fausta, Byzantine empress (approximate date)
- Nukata, Japanese poet (approximate date)
- Sigebert III, king of Austrasia (approximate date)
- April 27 – Ardashir III, king of the Persian Empire
- Du Ruhui, chancellor of the Tang Dynasty (b. 585)
- Ricberht, king of East Anglia (approximate date)
- June 9 – Shahrbaraz, king of the Persian Empire
- Rome at War AD 293–696 (2002), Michael Whitby, p. 76. ISBN 1-84176-359-4
- Yarmuk 636 A.D., "The Muslim conquest of Syria". David Nicolle (1994), p. 62. ISBN 1-85532-414-8
- Yorke, Barbara (2003). "Nunneries and the Anglo-Saxon Royal Houses", p. 23. ISBN 0-8264-6040-2
- Parvaneh Pourshariati, "Decline and Fall of the Sassanid Empire, (I.B. Tauris, 2008), p. 181–183
- The life of Muhammad and the history of Islam, Volume 4. Sir William Muir, p. 145