| Millennium: | 1st millennium |
|---|---|
| Centuries: | 2nd century – 3rd century – 4th century |
| Decades: | 170s 180s 190s – 200s – 210s 220s 230s |
| Years: | 200 201 202 – 203 – 204 205 206 |
| 203 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 203 CCIII |
| Ab urbe condita | 956 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1641 – -1640 |
| Bengali calendar | -390 |
| Berber calendar | 1153 |
| Buddhist calendar | 747 |
| Burmese calendar | -435 |
| Byzantine calendar | 5711 – 5712 |
| Chinese calendar | 壬午年十二月初一日 (2839/2899-12-1) — to —
癸未年十一月十一日(2840/2900-11-11) |
| Coptic calendar | -81 – -80 |
| Ethiopian calendar | 195 – 196 |
| Hebrew calendar | 3963 – 3964 |
| Hindu calendars | |
| - Bikram Samwat | 259 – 260 |
| - Shaka Samvat | 125 – 126 |
| - Kali Yuga | 3304 – 3305 |
| Holocene calendar | 10203 |
| Iranian calendar | 419 BP – 418 BP |
| Islamic calendar | 432 BH – 431 BH |
| Japanese calendar | |
| Korean calendar | 2536 |
| Thai solar calendar | 746 |