| Millennium: | 1st millennium |
|---|---|
| Centuries: | |
| Decades: | |
| Years: |
| 591 by topic |
|---|
| Leaders |
| Categories |
| Gregorian calendar | 591 DXCI |
| Ab urbe condita | 1344 |
| Armenian calendar | 40 ԹՎ Խ |
| Assyrian calendar | 5341 |
| Balinese saka calendar | 512–513 |
| Bengali calendar | −2 |
| Berber calendar | 1541 |
| Buddhist calendar | 1135 |
| Burmese calendar | −47 |
| Byzantine calendar | 6099–6100 |
| Chinese calendar | 庚戌年 (Metal Dog) 3288 or 3081 — to — 辛亥年 (Metal Pig) 3289 or 3082 |
| Coptic calendar | 307–308 |
| Discordian calendar | 1757 |
| Ethiopian calendar | 583–584 |
| Hebrew calendar | 4351–4352 |
| Hindu calendars | |
| - Vikram Samvat | 647–648 |
| - Shaka Samvat | 512–513 |
| - Kali Yuga | 3691–3692 |
| Holocene calendar | 10591 |
| Iranian calendar | 31 BP – 30 BP |
| Islamic calendar | 32 BH – 31 BH |
| Javanese calendar | 480–481 |
| Julian calendar | 591 DXCI |
| Korean calendar | 2924 |
| Minguo calendar | 1321 before ROC 民前1321年 |
| Nanakshahi calendar | −877 |
| Seleucid era | 902/903 AG |
| Thai solar calendar | 1133–1134 |
| Tibetan calendar | 阳金狗年 (male Iron-Dog) 717 or 336 or −436 — to — 阴金猪年 (female Iron-Pig) 718 or 337 or −435 |
Year 591 (DXCI) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. The denomination 591 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.