| Centuries: | 6th century · 7th century · 8th century |
| Decades: | 600s 610s 620s 630s 640s 650s 660s |
| Years: | 630 631 632 633 634 635 636 |
| 633 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 633 DCXXXIII |
| Ab urbe condita | 1386 |
| Armenian calendar | 82 ԹՎ ՁԲ |
| Bahá'í calendar | -1211 – -1210 |
| Bengali calendar | 40 |
| Berber calendar | 1583 |
| Buddhist calendar | 1177 |
| Burmese calendar | -5 |
| Byzantine calendar | 6141 – 6142 |
| Chinese calendar | 壬辰年十一月十六日 (3269/3329-11-16) — to —
癸巳年十一月廿五日(3270/3330-11-25) |
| Coptic calendar | 349 – 350 |
| Ethiopian calendar | 625 – 626 |
| Hebrew calendar | 4393 – 4394 |
| Hindu calendars | |
| - Bikram Samwat | 689 – 690 |
| - Shaka Samvat | 555 – 556 |
| - Kali Yuga | 3734 – 3735 |
| Holocene calendar | 10633 |
| Iranian calendar | 11 – 12 |
| Islamic calendar | 11 – 12 |
| Japanese calendar | |
| Korean calendar | 2966 |
| Thai solar calendar | 1176 |
Arab armies invade Syria and Iraq. [1]