| Millennium: | 1st millennium |
|---|---|
| Centuries: | 3rd century – 4th century – 5th century |
| Decades: | 320s 330s 340s – 350s – 360s 370s 380s |
| Years: | 348 349 350 – 351 – 352 353 354 |
| 351 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 351 CCCLI |
| Ab urbe condita | 1104 |
| Armenian calendar | N/A |
| Assyrian calendar | 5101 |
| Bahá'í calendar | -1493–-1492 |
| Bengali calendar | -242 |
| Berber calendar | 1301 |
| English Regnal year | N/A |
| Buddhist calendar | 895 |
| Burmese calendar | -287 |
| Byzantine calendar | 5859–5860 |
| Chinese calendar | 庚戌年十一月十七日 (2987/3047-11-17) — to —
辛亥年十一月廿七日(2988/3048-11-27) |
| Coptic calendar | 67–68 |
| Ethiopian calendar | 343–344 |
| Hebrew calendar | 4111–4112 |
| Hindu calendars | |
| - Vikram Samvat | 407–408 |
| - Shaka Samvat | 273–274 |
| - Kali Yuga | 3452–3453 |
| Holocene calendar | 10351 |
| Iranian calendar | 271 BP – 270 BP |
| Islamic calendar | 279 BH – 278 BH |
| Japanese calendar | |
| Korean calendar | 2684 |
| Minguo calendar | 1561 before ROC 民前1561年 |
| Thai solar calendar | 894 |
Year 351 (CCCLI) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Magnentius and Gaiso (or, less frequently, year 1104 Ab urbe condita). The denomination 351 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.