| Millennium: | 1st millennium |
|---|---|
| Centuries: | 5th century – 6th century – 7th century |
| Decades: | 510s 520s 530s – 540s – 550s 560s 570s |
| Years: | 540 541 542 – 543 – 544 545 546 |
| 543 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 543 DXLIII |
| Ab urbe condita | 1296 |
| Armenian calendar | N/A |
| Assyrian calendar | 5293 |
| Bahá'í calendar | -1301–-1300 |
| Bengali calendar | -50 |
| Berber calendar | 1493 |
| English Regnal year | N/A |
| Buddhist calendar | 1087 |
| Burmese calendar | -95 |
| Byzantine calendar | 6051–6052 |
| Chinese calendar | 壬戌年十二月初十日 (3179/3239-12-10) — to —
癸亥年十一月二十日(3180/3240-11-20) |
| Coptic calendar | 259–260 |
| Ethiopian calendar | 535–536 |
| Hebrew calendar | 4303–4304 |
| Hindu calendars | |
| - Vikram Samvat | 599–600 |
| - Shaka Samvat | 465–466 |
| - Kali Yuga | 3644–3645 |
| Holocene calendar | 10543 |
| Iranian calendar | 79 BP – 78 BP |
| Islamic calendar | 81 BH – 80 BH |
| Japanese calendar | |
| Korean calendar | 2876 |
| Minguo calendar | 1369 before ROC 民前1369年 |
| Thai solar calendar | 1086 |
Year 543 (DXLIII) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. The denomination 543 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.