| Millennium: | 1st millennium |
|---|---|
| Centuries: | 2nd century – 3rd century – 4th century |
| Decades: | 230s 240s 250s – 260s – 270s 280s 290s |
| Years: | 260 261 262 – 263 – 264 265 266 |
| 263 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 263 CCLXIII |
| Ab urbe condita | 1016 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1581 – -1580 |
| Bengali calendar | -330 |
| Berber calendar | 1213 |
| Buddhist calendar | 807 |
| Burmese calendar | -375 |
| Byzantine calendar | 5771 – 5772 |
| Chinese calendar | 壬午年十二月初五日 (2899/2959-12-5) — to —
癸未年十一月十四日(2900/2960-11-14) |
| Coptic calendar | -21 – -20 |
| Ethiopian calendar | 255 – 256 |
| Hebrew calendar | 4023 – 4024 |
| Hindu calendars | |
| - Bikram Samwat | 319 – 320 |
| - Shaka Samvat | 185 – 186 |
| - Kali Yuga | 3364 – 3365 |
| Holocene calendar | 10263 |
| Iranian calendar | 359 BP – 358 BP |
| Islamic calendar | 370 BH – 369 BH |
| Japanese calendar | |
| Korean calendar | 2596 |
| Thai solar calendar | 806 |