| Centuries: | 6th century · 7th century · 8th century |
| Decades: | 590s 600s 610s 620s 630s 640s 650s |
| Years: | 623 624 625 626 627 628 629 |
| 626 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 626 DCXXVI |
| Ab urbe condita | 1379 |
| Armenian calendar | 75 ԹՎ ՀԵ |
| Bahá'í calendar | -1218 – -1217 |
| Bengali calendar | 33 |
| Berber calendar | 1576 |
| Buddhist calendar | 1170 |
| Burmese calendar | -12 |
| Byzantine calendar | 6134 – 6135 |
| Chinese calendar | 乙酉年十一月廿八日 (3262/3322-11-28) — to —
丙戌年十二月初八日(3263/3323-12-8) |
| Coptic calendar | 342 – 343 |
| Ethiopian calendar | 618 – 619 |
| Hebrew calendar | 4386 – 4387 |
| Hindu calendars | |
| - Bikram Samwat | 682 – 683 |
| - Shaka Samvat | 548 – 549 |
| - Kali Yuga | 3727 – 3728 |
| Holocene calendar | 10626 |
| Iranian calendar | 4 – 5 |
| Islamic calendar | 4 – 5 |
| Japanese calendar | |
| Korean calendar | 2959 |
| Thai solar calendar | 1169 |