| Millennium: | 1st millennium |
|---|---|
| Centuries: | 4th century – 5th century – 6th century |
| Decades: | 390s 400s 410s – 420s – 430s 440s 450s |
| Years: | 422 423 424 – 425 – 426 427 428 |
| 425 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 425 CDXXV |
| Ab urbe condita | 1178 |
| Armenian calendar | N/A |
| Assyrian calendar | 5175 |
| Bahá'í calendar | -1419–-1418 |
| Bengali calendar | -168 |
| Berber calendar | 1375 |
| English Regnal year | N/A |
| Buddhist calendar | 969 |
| Burmese calendar | -213 |
| Byzantine calendar | 5933–5934 |
| Chinese calendar | 甲子年十一月廿六日 (3061/3121-11-26) — to —
乙丑年十二月初六日(3062/3122-12-6) |
| Coptic calendar | 141–142 |
| Ethiopian calendar | 417–418 |
| Hebrew calendar | 4185–4186 |
| Hindu calendars | |
| - Vikram Samvat | 481–482 |
| - Shaka Samvat | 347–348 |
| - Kali Yuga | 3526–3527 |
| Holocene calendar | 10425 |
| Iranian calendar | 197 BP – 196 BP |
| Islamic calendar | 203 BH – 202 BH |
| Japanese calendar | |
| Korean calendar | 2758 |
| Minguo calendar | 1487 before ROC 民前1487年 |
| Thai solar calendar | 968 |
Year 425 (CDXXV) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Theodosius and Valentinianus (or, less frequently, year 1178 Ab urbe condita). The denomination 425 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.