| Centuries: | 5th century · 6th century · 7th century |
| Decades: | 520s 530s 540s 550s 560s 570s 580s |
| Years: | 553 554 555 556 557 558 559 |
| 556 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 556 DLVI |
| Ab urbe condita | 1309 |
| Armenian calendar | 5 ԹՎ Ե |
| Bahá'í calendar | -1288 – -1287 |
| Bengali calendar | -37 |
| Berber calendar | 1506 |
| Buddhist calendar | 1100 |
| Burmese calendar | -82 |
| Byzantine calendar | 6064 – 6065 |
| Chinese calendar | 乙亥年十二月初四日 (3192/3252-12-4) — to —
丙子年十一月十五日(3193/3253-11-15) |
| Coptic calendar | 272 – 273 |
| Ethiopian calendar | 548 – 549 |
| Hebrew calendar | 4316 – 4317 |
| Hindu calendars | |
| - Bikram Samwat | 612 – 613 |
| - Shaka Samvat | 478 – 479 |
| - Kali Yuga | 3657 – 3658 |
| Holocene calendar | 10556 |
| Iranian calendar | 66 BP – 65 BP |
| Islamic calendar | 68 BH – 67 BH |
| Japanese calendar | |
| Korean calendar | 2889 |
| Thai solar calendar | 1099 |