| Centuries: | 5th century · 6th century · 7th century |
| Decades: | 490s 500s 510s 520s 530s 540s 550s |
| Years: | 522 523 524 525 526 527 528 |
| 525 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 525 DXXV |
| Ab urbe condita | 1278 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1319 – -1318 |
| Bengali calendar | -68 |
| Berber calendar | 1475 |
| Buddhist calendar | 1069 |
| Burmese calendar | -113 |
| Byzantine calendar | 6033 – 6034 |
| Chinese calendar | 甲辰年十一月廿二日 (3161/3221-11-22) — to —
乙巳年十二月初二日(3162/3222-12-2) |
| Coptic calendar | 241 – 242 |
| Ethiopian calendar | 517 – 518 |
| Hebrew calendar | 4285 – 4286 |
| Hindu calendars | |
| - Bikram Samwat | 581 – 582 |
| - Shaka Samvat | 447 – 448 |
| - Kali Yuga | 3626 – 3627 |
| Holocene calendar | 10525 |
| Iranian calendar | 97 BP – 96 BP |
| Islamic calendar | 100 BH – 99 BH |
| Japanese calendar | |
| Korean calendar | 2858 |
| Thai solar calendar | 1068 |