| Centuries: | 5th century · 6th century · 7th century |
| Decades: | 560s 570s 580s 590s 600s 610s 620s |
| Years: | 588 589 590 591 592 593 594 |
| 591 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 591 DXCI |
| Ab urbe condita | 1344 |
| Armenian calendar | 40 ԹՎ Խ |
| Bahá'í calendar | -1253 – -1252 |
| Bengali calendar | -2 |
| Berber calendar | 1541 |
| Buddhist calendar | 1135 |
| Burmese calendar | -47 |
| Byzantine calendar | 6099 – 6100 |
| Chinese calendar | 庚戌年十二月初一日 (3227/3287-12-1) — to —
辛亥年十二月十一日(3228/3288-12-11) |
| Coptic calendar | 307 – 308 |
| Ethiopian calendar | 583 – 584 |
| Hebrew calendar | 4351 – 4352 |
| Hindu calendars | |
| - Bikram Samwat | 647 – 648 |
| - Shaka Samvat | 513 – 514 |
| - Kali Yuga | 3692 – 3693 |
| Holocene calendar | 10591 |
| Iranian calendar | 31 BP – 30 BP |
| Islamic calendar | 32 BH – 31 BH |
| Japanese calendar | |
| Korean calendar | 2924 |
| Thai solar calendar | 1134 |